Is eTwinning socially contagious?

Last weekend I joined more than 500 eTwinners (www.etwinning.net) in the 5th annual conference that took place in Sevilla. Quite a fiesta! I co-ran 3 workshops which all had something to do with social networks, more or less. I jokingly tell teachers that I'd like them all get an eTwinning virus and spread it around when they go home. This "virus" is, of course, a good one (e.g. innovative use of web in ed.context) and it spreads through the social network that teachers have created by being part of eTwinning. From where my question: is, or can, eTwinning be socially contagious?

Often times nowadays when people talk about social networks, they actually talk about social media tools or web 2.0 stuff, where it is made easy to express your social ties and make them visible to others (can I friend you?). Underneath all that "stuff" lies the structure of the social network which is of interest to me. I consider a network

as a conduit for the propagation of information or the exertion of influence, and an individual's place in the overall pattern of relations determines what information that person has access to or, correspondingly, whom he or she is in a position to influence. A person's social role therefore depends not only on the groups to which he or she belongs but also on his or her position within those groups. (Watts, 2003, p. 48)

Moreover, Watts goes on to explain yet a different way to view the network, namely through weak ties, "which can be thought of as a link between individual- and group-level analysis in that they are created by individuals, but their presence affects the status and performance not just of the individual who "own" them but of the entire group to which they belong." - and this all leads to the new science of networks.

Duncan Watts's book Six Degrees (2003) is one of my favourite science-tainment (like edutainment) book. I always enjoy picking it up and re-reading it, I seem to understand some of the passages in a new light. Today I re-read the stuff about differences of spreading a virus and "social contagion", like a fab that spreads or cascades throughout the whole social network.

There are some similarities, like the fact that each individual has a different threshold (some get the virus easier than others) and that you have people around to spread it to ("to whom she or he pays attention to"). But "social contagion", unlike biological one, does not take place if the network is too well connected!

So when everyone is paying attention to many others, no single innovator, acting alone, can activate any one of them. ... In social contagion, remember, it is the relative number of "infected" versus "uninfected" - active versus inactive - neighbors that matter. (Watts, 2003, p. 240)

Studying fabs or innovations (e.g. the use of web in ed.context), the question is about the moment when the fab stops being a niche thing among early adapters and when it leaps to the larger general population. I too often have a feeling that eTwinning "preaches to the converted". So, I'm keen on understanding how eTwinning can step out of being a nice of early adapters and get the others "contaminated". Someone aired a good comment in the conference, we should not take eTwinners as a representative sample of educational community in general.

Step one: who is infected?


I ran a few analysis to get a better picture. It's hard to find the number of schools or teachers in all eTwinning countries. After some digging I found OECD's Stat extracts which has lots of good data, and was able to find the number of teaching staff for 23 out of 32 countries (close to OECD's definition for EU19). I think that's a pretty good proxy to go by, however, not sure how accurately our data aligns with them. I used the date as described in the image for 2007.

The data says there was 6 210 411.57 teachers (I love the 0.57 teacher!) working in those countries, out of which 76 367 have registered in eTwinning by this date. On average, each country has 1.83% of their teachers infected by the "eTwinning virus", median was 1.42%. The countries above median in descending order are: Estonia, Iceland, Slovak Republic, Czech Republic, Slovenia, Finland, Greece, Poland (still above average, too!), Spain, Luxembourg, Portugal and Sweden. Are you surprised? I am a bit...

The countries below median were: the United Kingdom, Turkey, Norway, Netherlands, Italy, Ireland, Hungary, Germany, France, Belgium and Austria.

Well, my question is not about the success of eTwinning initiative itself, but it's more about understanding what are the conditions (globally and locally), what are the individual thresholds and when can we expect the cascading effect to take place (it's all about one or more vulnerable neighbors who have one or more vulnerable neighbors who have...).

These are typical questions that people interested in the new science of networks ask, and I want to know more how it happens within educational context. I think eTwinning is a good virus to study that!

We've just stated the TeLLNet project with some top-notch partners, so I'm looking forward to dwell into this problematic later again!

From what are big educational ideas made?

Silicon valley is an iconic example when people talk about innovation. To breed innovation, it's important to remember that it's not only about individuals with ideas, but about the right conditions, like a "large number of cutting-edge entrepreneurs, engineers and venture capitalists" (wikipedia), in the case of the Valley. On top of that, you add a flavour of Californian sea, sun and wine, and you season it with a bit of pioneering attitude, and voila!

I'm today in California for theBig Ideas Fest.

The three-day Big Ideas Fest is an immersion into collaboration and design with the focus on inspiring and modeling cutting-edge thinking in K-20 education.

The programme and the names of speakers are pretty impressive! I think there will be an interesting buzz in the air, as the event brings together cutting-edge educationalists, "doers and shakers" who are interested in brainstorming on big ideas that are needed to move education in the right direction. The session is starting in a few seconds, so I'll be reporting back later.

My degree of Doctor at Open Universiteit Nederland

"..you hereby receive all rights associated with the degree of Doctor either by law or custom"

My Doctorate Board and me with the degree and a huge smile - what a day!

From left Prof. dr. G. Conole, Prof. dr. A. Littlejohn, Prof. dr. B. Berendt , me, Prof. dr. P.B. Sloep, Prof. dr. E.J.R. Koper (supervisor), Prof. dr. J. van Marle (chairman) and Beadle E. Vinken. And no, even if I'm a doctor now, I don't get to wear a funny hat!

I thank everyone involved in my research and all who sent me kind wishes and congratulations!

my 10 minutes of fame

View more presentations from Riina Vuorikari.

Slides and PhD download

Future privacy and security resaerch challenges in online social networks

I attended this workshop a couple of days ago. It was an interesting mix of ppl with different backgrounds; computer scientists, researchers, lawyers, some practitioners & users like a SN provider, some artists who run social network services, and my interest was of course teachers' social network services like our eTwinning platform (more than 70000 teachers).

I enjoyed the keynote by Ronald Leenes from Tilburg University. A few projects that he mentioned, PrimeLife (Bringing sustainable privacy and identity management to future networks and services) and BROAD (Broadening the Range Of Awareness in Data protection).

EUN is now running a http://www.dataprotectionday.eu/ campaign, here is my favourite film about it!

Most scholarly opponent - PhD Ceremony in OUNL Nov 13 2009

It's pretty exiting to prepare for the PhD ceremony. There are all kinds of little things to think about. I've never gotten married, but it sure sounds like the same thing. In the Netherlands, for example, we need to have paranymphs at the PhD ceremony.

Yes, I know, it sounds like I need to have two dwarfs by my side there, but apparently they are like a bride's maid or a best man. With a twist that in case there was a heated fight between me and the opponents during the defence, the paranymphs would defend me with swords. Or, you know, something similar. So far, all what I've seen is that they hand over a class of water, but - we've ain't seen nothing yet..

Another thing is the manner of speech, I am, for example, to address the members in my committee by saying "most scholarly opponent", if they are a professor, otherwise just "scholarly opponent" is fine. And they call me "esteemed candidate". Pretty theatrical :)

Finally, I needed to prepare 10 statements in advance, they are called stellingen. 4 of them are about my thesis and the rest are more general (some can even be a bit funny, see #10). But in general, they all should be something that I can defend.

The purpose of this is that when the opponent has not had time to read my thesis and come up with a question, they can read one from the list. This way they can have a well formulated question to ask. My advantage - I can prepare for it in advance. Kind of a funny game! It seems to me that the more bold the statement is, the better chances there are that one of the opponents reads it out loud. Let's see...

1. A learning resource portal in a multilingual context can be made more robust and flexible by interrelating conventional metadata and social tags. (this thesis)

2. Socal tags, represented as a triple (user,item,tag), open more sophisticated avenues for resource discovery across contexts, especially when it applies to cross-language and cross-country discoveries. (this thesis)

3. The triple (user,item,tag) can be used as a parameter to measure links between cross-language content that reside on heterogeneous repositories. It can be created a posteriori to content creation and link-setting, and it can be used to support and enhance a new type of link-following behaviour by end-users. (this thesis)

4. The discovery strategies based on Social Information Retrieval (SIR) methods allow users to spend less effort in finding relevant resources on a multilingual portal. (this thesis)

5. The notion of learning resources as content is too limiting.

6. Even if the current trend in information seeking behaviour is the Web, interpersonal ties still drive and support information seeking. Social search should be considered beyond individual’s Web-behaviour.

7. While studying the impact of new information and communication technologies on education and attainment, studying their out-of-school use should be considered as important as their in-school use.

8. In Technology-Enhanced Learning, like in other lo-fi high tech, the next best thing is “good ‘nuf” for most users.

9. Languages both unite and divide people.

10. Anyone involved in decision-making for educational purposes should read science fiction.

Educational take - danah boyd: American Teens & Social Media

danah boyd has put something really important in words in this little video, it's related to the use of social media (applicable to all ICTs and mobile technologies) in education. If in a hurry, fast-forward to about 5.30 of the video:

Teens need to know boundaries, norms and how society works, and this should be taught through using social media, i.e. the tools that they use anyway .

The reason that "because kids are doing it" it not a good reason to start teaching about social media in schools. "Pedagogy and understanding of the tools, are two key pieces of knowledge that teachers must have before entertaining the idea of bringing social media into the classroom. Information sharing is relevant to education..."

A valid point made for teachers continuous professional development!

Invitation to the public defence of my PhD

Hurrah, finally the day when I can announce the public defence of my PhD: Nov 13 2009 at 13.30. You are welcome to join the public defence of my PhD at the OUNL premises in Heerlen, NL!

Today I also submitted my manuscript to print. Here you can see the cover of the publication, which is also downloadable here.

Run of the day:
13.30 Public defence in OUNL
15.00 Reception (all welcome, RSVP)
19.30 Dinner in Brussels (RSVP)

Impact of ICT use on educational performance

The question the top-dog politicians nowadays ask is the impact of ICT on educational performance. Especially in the school sector, this has been the trendy question since a few years, when the policy makers realised that they want to see some return on their investment (i.e. all the hardware put in schools). My favourite EUN report on recent research is The ICT Impact Report (01/2007).

This week at the OECD's New Millennium Learner conference South-Koreans presented another interesting study towards this direction. Prof. Heo's presentation is available here, check the pages from 20 onwards for the results. The study included 10% of the 10th graders in South-Korea (1071 students, random sampling). The design of the study looked at the use of ICT

• Place: in-school and out-of-school use of ICT
• Purpose: learning vs. entertainment use of ICT
• Context: individual use vs. social use of ICT

Educational performance was divided into:

• Cognitive domain
• Affective domain
• Socio-cultural domain
  

Significant impact was found on educational performance with:

• Out-of school ICT use
  
• ICT use for learning
  
• ICT use in individual context

Note, in-school use did not yield any significant impact :/ More interestingly, out-of-school use of ICT for learning purposes had a positive correlation (r=0.520, p= 0.00) with cognitive domain of educational performance, which shows good news for informal context of learning.

Mindmap from Social Information Retrieval for Technology Enhanced Learning workshop

Best Paper Award in ICWL'09

The paper that I presented in ICWL'09, Are tags from Mars and descriptors from Venus? A study on the ecology of educational resource metadata, was awarded the Best Paper Award. That was pretty dam cool! The picture below shows how psyched I was to pick up the award at the gala dinner. You'll find the paper from here and a news release from here.

The picture is by Kevin Chen from RWTH, Aachen.

Ok, this is an inside joke: I've named the pic "la vengeance se mange très-bien froide", for those who know the story, you guessed that the timing of this award could not have been better! Thanks for the co-authors and the jury :)

Obama's OER vs. EU's OER

Checking the news about Obama's announced initiative where a $500-million-dollar online-education plan is outlined with the idea that the money will buy online course material that is made freely available. The person who is pushing the plan within the administration, Mr. Smith, has previously worked with OER in Hewlett Foundation, which has put some $ 70 million in last years to support Open Educational Resources worldwide.

EU has put huge amounts on different research and development progremmes around digital educational resources since late nineteens, and especially under Lisbon 2010 agenda. I checked some figures just for recent times:

• FP7 progrmamme for '09-'10 has €151 million euros for digital libraries and TEL
• LPP puts € 7 billion for the programme from '07 to '13, more than a billion a year
• eContent Plus has significant budgets also
  

The big difference is that the EU seldom actually puts money in developing the content, but actually innovation and services around the content. I think the reasoning is that the content comes from publishers and more and more from end-users, and they do not want to rock that boat too much. I actually cannot think of a single EU-project where the content creation is paid by EU. For example the big OUUK initiative was also funded by Hewlett Foundations, which nowadays gets the world-wide claim to OER fame.

This setting could offer an interesting comparison study in a few years time: do we see more uptake with content that is professionally developed and made available to educators and learners (i.e. Obama's model), or do we see that the EU model, where the focus is on services, but the content is not always up to par, (finally) produces some uptake?

I wanted to find the journal article mentioned in the post, but could not

In January he published an article in the journal Sciencelaying out the dream of "a 21st-century library" composed of Web-based open courses for high-school and college students. The courses would be laced with multimedia features and personalized with feedback from computer programs that track student performance. The language coming out of the White House and Education Department today echoes some of the concepts in Mr. Smith's article.

Social media: narcissism, ADHA, stalking

This is a pretty accurate depiction of the what goes on with the users of social media. It makes a good-looking t-shirt!

Personalisation vs. Social

I've been thinking of this personalisation-thing a lot lately. I quite cannot get my head around it, so this blog post is just to mull over the ideas.

By personalisation it is meant that, for example on a learning resource portal, the offer is tailor made for one of the users of the system. There are three commonly known ways of doing this:

1. Based on self-proclaimed profile (e.g. you say you teach math, so your services are personlised towards math)
   
2. Based on collaborative filtering e.g. ratings (like-minded users, ppl who agree in the past tend to agree in the future) or content-based filtering
   
3. Based on behaviour (e.g. other teachers who used this resource, also used xx)
   

In the cases 1 and 2, the idea is that there is a profile for you, whereas no: 3 can be used for any user (e.g. this is what Amazon does for any user regardless if they are logged in or not). With the first two cases, we can state that this type of personalisation is often cumbersome and labour-intensive, the problem is how to get that information from users (which creates cold start problem for users, and is also related to cold start problem of resources).

Also, not all the users are always interested in doing the work of filling in a profile or rating resources. In one of my studies (Vuorikari, Sillaots, Panzavolta, Koper, 2009) we found very different types of users behaviour, in this case related to how ppl tag (which could be also used for collaborative filtering).

About 33% of ppl tagged content (the arrows going away from the user group in the image), 32% used tags for searching but did not tag themselves (the arrows going towards a user), whereas 35% of ppl did not tag nor used tags at all (in the image the arrow going from LOM towards the group indicating that they used LOM based search methods only).

In this case, I'm interested in the 32% group, who clearly got benefit from tagging that other folks did, but did not do any work themselves (kinda freeriders, if you wish, but I don't mean to be negative).

If we were to use the tagging and bookmarking information to construct a user profile of the users and further use it for personalisation (no: 1 and 2 in the list above), we would be only able to do it for the group of taggers, i.e. 33%. The benefits could only be reaped by that group too, since for the rest of them, we have no profiling information to be used for personalisation.

However, a social tagging system is more about creating "personalisation" for all the users of the system, regardless if we know anything about them and they are willing to put in the time to create a profile and feed it in. It's about making social navigation trails visible to every user of the system, instead of going for "personalisation".

What I think is really cool is that we've shown that we more than doubled the amount of ppl who took advantage of contributions, i.e. from 27% who tag and use tags for navigation to 59% (that is adding the group of 32% who use tags but don't tag).

My assumption is that the rest would not even care about recommendations, etc., as they seem to formulate their searches in a rather acknowledgble way (40% formulate advanced searches; 38% only browse categories and 30% do both).

---------------------------------------------------
Some other thoughts about personalisation:

• There are things that I dig, like Amazon, when it tells me "ppl who bought this book also bought xx". Thing thing is, though, that is the stuff that generally makes any user's life better on Amazon. It is not that they personalise the thing for me only, the unique Riina, the one and only, but it is something that makes any users experience on Amazon better.
  
  
• the problem with personalisation often is that there needs to be a detailed profile of you that is based on detailed user model that is based on some abstract model that some obscure committee came out with in the 70's. Ok, that's maybe a bit exaggerated, but you get the point - there is a model where you are fitted.
  
  
• What if I don't want to be personalised? What if I want to do the same thing as my buddies do; listen to same music as they do, study the same stuff as they do and go shopping with them? I want to share my life and experiences with other people around me because, guess what, through that type of sharing and doing stuff together, I feel related to them, I have things to talk with them and we form a community together. And it is really important for me to be part of that community, because it's part of who I am and helps me to reflect on what's out there.
  
  
• Is peronalisation really personalised? It's not actually. By making things personalised to me, what is actually happening is "un-personlisation" of me. My taste is guided to the direction of all the other users, so I am actually being socialised! My personal music recommendations are actually very similar to other listeners, and eventually, it's all going to be the same taste!! Of course, unless there is randomness which offers serendipity.
  
  
• Lately with all these micro-messaging things where ppl post their "mood" or what they are doing online ( e.g. I should be tweeting right now: "I'm writing a blog post" and simultaneously have it up on my Facebook), it's kinda funny that they feel this urge to yell out to all what they are doing in their über-personlised world.
  

Palm Pre - I wonder when it might come to Europe?

Already for a long time I've been ready to say goodbye for Nokia. This is a big statement from someone from Finland whose grown up with Nokia. Mind you, when you kid/growing up you wear Nokia rubber boots. Your bike tires are Nokia. I bet at one point there was also toilet paper that they produced, among other things like cable and TVs. And then - the first kännys, the mobile phones in early 90' (Btw, they were not called gsms back in the day, as we used anotehr standard called NMT with much better coverage in vaste areas like in Lapland).

So, my whole active mobile phone user time (which in my case started already in early 80's, dad had a mobile phone in the car which we used to tell mom to turn on sauna when returning from summer house. You actually had to go by a dispatcher and push to talk!) I've stayed fidel to Nokia, and mostly Communicator, which I have had since '03 or something (when they came up with the 2 model).

Anyway, everything turned sour with the last Communicator that I had (E something). They've cut down the awsome shortcuts that used to be there and everything became too heavey and hard to use. Also, the size did not get any smaller. But I did not want to buy an iPhone either, I think no cool kids use iPhone. All the other phones are infested with all Microsoft this and that from which I prefer to shun away. So when I heard about Pre Palm, I took a look at it with no presumptions of the past (I used to hate palms and despite ppl who choose to use such an inferior technology - go and figure)

I so want it, this review is really good. I wonder if I have to wait until they come to Europe or can I buy it from the US? Well, actually just checked on it, by Christmas - geee, that's some waiting.

Google parsing microformat, e.g. ratings

In May Google announced that they will start parsing microformats (on a small scale first), similar stuff came out from Yahoo! last year, but even on a smaller scale.

This is pretty huge for the end-user generated ratings! I must say that I did not see it coming in this way, which makes it even more exiting :)

..Google is releasing support for parsing and display of microformat data in their search results. .. anyone who marks their pages up with the appropriate microformat data will be able to make their information understandable by Google. This technology would allow you to explicitly search, for example, for only printers that had an average customer review of 3 stars or higher.

Holy smokes! This is cool, can't wait to see when it will first pop up in my search :)

So, since a long time it's been problematic to get enough ratings on items, this is a known problem especially in the field of Recommender systems. They talk about "sparse data". An example, you want to make a recommendation on music, but the item x has 3 ratings, item y 2 ratings, etc. This is way too little to be used to create recommendations using the algorithms that are out there. Take another example, a camera shop, they let users rate their cameras, but they get very little reviews from users.

Now, however, there are other camera shops who are struggling with the same problem. Essentially, they all are selling the same camera brands, and they all have only a few ratings on it, and at the end, non of them can do much fun with this small amount of rather anecdotal information.

There has been talk about a unique identifier set by industry, for example, so that all camera sellers could use them and thus aggregate all the reviews and ratings together. Yep, you guessed it, there's maybe that one shop down the blog who does not want to use it. I think a couple of years back Yahoo! came up with a very compelling paper reiterating the idea and trying to muster up enough consensus among industry and other players. Not much happened - and then, here is Google and microformats... beautiful :)

Why I'm interested in this is that with the idea of federating learning resource metadata across repositories, we face the same problem. As a result of sharing metadata, the same resource might end up used in many different repositories, where users might be allowed to rate them. But that metadata on ratings or evaluations is VERY seldom shipped back to the mother board.

The same with tags and bookmarking (other other tools that allow users to create collections or playlists). That could be valuable information for the repository who first federated the resource metadata out. By collecting back the varied annotations from different repositories, they could gain interesting information, and eventually overpass the sparse data problem. Moreover, they would gain data about what works and in which context, which makes me think of "travel well" resources.

In action

Here is an example of a search for Palm's new phone that I'm contemplating on. I search for reviews only and the result list shows the ratings, but I cannot yet make a query saying "palm pre" ratings grater than 3. Nice in any case.




I've had a few ideas on this with some colleagues and I really look forward to seeing what Google comes up with that. And how are they going to solve the issue of different rating scales used, and multi-attribute ratings.

Vuorikari, R., Manouselis, N., & Duval, E. (2007). Metadata for social recommendations: storing, sharing and reusing evaluations of learning resources. In D. H. Goh & S. Foo (Eds.), Social Information Retrieval Systems: Emerging Technologies and Applications for Searching the Web Effectively (pp. 87-107). Hershey, PA: Idea Group Inc. Retrieved from http://elgg.ou.nl/rvu/files/20/144/SIR_vuorikari_manouselis_duval_web.pdf.

Manouselis, N., & Vuorikari, R. (2009). What if annotations were reusable: a preliminary discussion. In M. Spaniol (Ed.), Advances in Web-Based Learning - ICWL 2009, Lecture Notes in Computer Science (Vol. 5686, pp. 255–264). Berlin Heidelberg: Springer-Verlag.

Tags and self-organisation: a metadata ecology for learning resources in a multilingual context

I think I finally came up with a title for my PhD. You know, the type of title that says it all. It's a bit long, but "correct and descriptive", like Matt said. So here it goes: Tags and self-organisation: a metadata ecology for learning resources in a multilingual context.

Here is a wordle, it was extracted from a paper that summaries the research. Looks pretty accurate :)

Study on contexts in tracking usage and attention metadata in multilingual Technology Enhanced Learning

Just submitted the final version of the paper to a workshop on Exploitation of Usage and Attention Metadata (EUAM 09). Here is a one-pager about it and the link to the paper.

Study on contexts in tracking usage and attention metadata in multilingual Technology Enhanced Learning

“Context” is widely accepted to be important for correctly interpreting user input and for improving predictive and possibly also diagnostic models. But what is context, and how can it be measured? By measuring we mean to operationalise the construct and data gathering to provide values for the desired variables.

In this study, we consider the intersection of the areas of digital learning resource repositories, digital libraries and social tagging systems where users from a variety of countries use technology enhanced learning (TEL) offerings in a variety of languages. We consider usage and attention metadata as an example of the wider notion of context adapting the definition of context as “any information that can be used to characterise the situation of entities” [Dey01]. We give an overview of dimensions of context that are relevant in TEL, specifically arguing that context comprises the usage situation and environment as well as persistent and transient properties of the user. Therefore, distinguishing between the macro-context and the micro-context of TEL is useful.

TEL and the analysis of the data it generates take place in different types of educational settings which we call the macro-context of TEL. We use the term micro-context to denote the context that is relevant for interpreting a specific user input and for designing adequate system responses and other output. The micro-context is subdivided into user models, material/environment models, interaction models, and background knowledge, showing that usage and attention metadata are of different types and play different roles for learning about context.

We then concentrate on teachers using learning-resource repositories as an important use-case example of TEL and focus on language and country as context variables. We describe different ways in which these variables are operationalised, and we outline ways in which TEL use such context information to improve the use and reuse of repositories by supporting users in a multilingual and multicultural context. A key theme of our article is the central role that social tagging can play in this process: on the one hand, tags describe usage, attention, and other aspects of context, on the other, they can help to exploit context data towards making repositories more useful, and thus enhance the reuse.

Riina Vuorikari 1,2, Bettina Berendt3
1 European Schoolnet, Brussels, Belgium,
2 OUNL, Heerlen, Netherlands,
3 KU Leuven, Belgium

My tag paper nominated for best paper award 2009

I'm pretty exited that one of my papers for ICWL 09 was among the 5 best paper nominees. For a some time now I've been wondering what does it take to write a paper that arises above the general mass of papers. Well, now I have a bit better idea :)

What does it take? Reading tons of research papers, write a few (un)successful ones to practice, a good inspiring topic, some research work with ppl who are truly interested in what they are doing, and voila!

I also like how Celstec, OUNL (where I study), picked it up for their news feed. I think that over all, they have a pretty neat way to recognise what's going on and make others aware of it too. A modest person as I am, I would never make any fuss about it.... right.. ;)

Wiley calls it “dirty secret” of OER

Just picked up a fresh PhD study by S. M. Duncan from USU, a student of D.Wiley's. The study is called Patterns of Learning Object Reuse in the Connexions Repository. The punch line is that there is very little reuse of LOs among the repository studied.

What new? Similar findings have been discovered here in Europe (end elsewhere) for a while now. Ochoa (2008), for example, found in his PhD dissertation that reuse in general remains low, about 20%, across all sizes of collections. This was interesting not only for how low the reuse is (20%, common!), but also because since forever folks have been saying that resources with smaller granularity are more reusable, as they lack context, etc (insert here the infamous graph of "modular content hierarchy", the most used LO). Well, according to Ochoa (2008), this was not the case.

I also looked at the reuse on 2 different platforms: LeMill and Calibrate from European Schoolnet. My twist was to study the cross-boundary use and reuse, i.e. teachers reusing learning resources that are in a language other than their mother tongue and originate from different countries than they do. I used the same reuse definition as Ochoa (2008), which basically is the same as in Duncan's study.

The finding was that the general reuse was around 20%, but NOT across all collections. For example, in LeMill, "Multimedia material" was used more often, but in Calibrate, the smaller granularity was seldom added to Collections. The cross-boundary reuse was notably less (37% to 55% of it). Moreover, in some of the collections only around 10% of resources were ever added to a collections, which makes you really think hard about the efficiency of this all..

Anyway, the good news in Duncan's study is this:

There was a common author in 3,722 module uses, while there were only 1,013 module uses where there was no common author. This means that modules were included in collections 3.67 times more often when there was at least one person in common with both the module and the collection.p.32

So if people know each other, they are more likely to reuse material from each other! This shows that social is important when we are talking about the use and reuse of learning resources! This is similar to what I am saying in my PhD thesis, which hopefully will come out one day soon. My twist of course is that tags can make those social connections between people, and by taking advantage of these underlying social connections, we can make the learning resource discovery much better - and hopefully also more useful for teachers.

Vuorikari, R., Koper, R. Evidence of cross-boundary use and reuse of digital educational resources. Link to a revised version of the paper, not reviewed yet!

Testing LeMill for embedding content

LeMill is one of my favourite tools to create online material. It's so simple and easy to use. What I like a lot is that they always follow their time, like here I'm testing how the embedding of my content happens in another platform.

Here is one "Collection" that I've created called "hansin kamaa" = stuff from Hans. It includes two different pieces of content. Apart from exporting the content as a zip-file, I can now also just embed it somewhere, for example in my blog. Pretty neat - and useful!



Testing something else here: