Recommendationsmore

John Crane provides an invaluable resource for all IB Psychology teachers. The site provides up to date studies and relevant material in the current news. It has become my go-to source for IB specific materials.

Graham Samson, Exeter College, United Kingdom

InThinking has been a tremendous help for a first time IB Psychology teacher. The students have found the lessons relevant and rigorous. I am very impressed by the variety of materials and writing samples available on the website.

Roger Orstad, Cedar Ridge High School, USA

Gracias por toda la informacón provista.

Mario Giraldo, American British Academy, Oman

Subscriber comments


  • Hi John, I am having trouble understanding the Atri 2004 study on acetylcholine. Do you mind explaining the results in simple terms, especially the different findings related to "overlapping and non-overlapping pairs"? Could you also provide...
  • 18 Oct Katrina Allemeier
    Epigenetics and depression
    On the evaluation of Caspi, should the VERY last word be depression instead of expression?
  • 18 Oct Brian Pierce
    The Mann Whitney U Test
    Hello. The Vassarstats site is unavailable. Is there a different link?
  • 18 Oct John Crane
    IA clarifications
    Sara - yes, that is how I interpret it. So, instead of comparing the means of the replication to the original (results), they would look at the support or lack thereof of the hypothesis (findings).
  • 18 Oct John Crane
    LP 1: Memory and the brain
    Dear Sarah I don't see why not. I don't think that students need to understand a lot about memory to understand Maguire - and Sarah Scott is not about memory.
  • 18 Oct John Crane
    LP 1: Memory and the brain
    Dear Anna - thanks or that. Very interesting.
  • Dear Chris, They are really two different studies. Milner looked at the cognitive aspects of the case, whereas Corkin looked at the biological aspects.
  • 18 Oct John Crane
    Writing samples: Development
    Dear Natalie Piaget would only be good for answering the cognitive approach. Vygotsky would be ok for sociocultural. I do not see how they could ask a question about "biological" because they already have brain development under the required...
  • 18 Oct John Crane
    Developing as a learner 

    Dear Bhavna yes, it can.
  • 18 Oct John Crane
    Rogers & Kesner (2003)
    Dear Shelley Yes, that one. I do have originals, but I am not allowed to share them through this site because of copyright. If I have a copy that I download for free, then I can share it.
  • 18 Oct Sara Dean
    IA clarifications
    Hi John, Regarding number 2. It says that comparing to the results of the original study is meaningless, however it says comparing the findings is more appropriate. Aren't results and findings the same thing? I take it to mean that comparing...
  • 18 Oct Anna Nokland
    LP 1: Memory and the brain
    Video tip - phantom limb and neuroplasticity: (Ted-Ed)