Thanks! So frustrating, but that makes more sense now.
Case study: Moms and childhood obesityAs they were recruited (which I assume means that an email was sent out to all members of the former study), then it would be voluntary. If they had gone to a specific place (e.g., a clinic), then it woud be an opportunity sample. This...
Case study: Moms and childhood obesityHi John, Can you clarify why this not an opportunity sample? Does "recruitment" necessarily mean self-selected? In that case, would then all sampling be volunteer unless explicitly stated that it is snowball? Reina
Case study: Moms and childhood obesityThanks for that Owen. I will look into the 2020 review and update the page.
Health: Treatment for addictionDear Andrew There is no treatment specified, so I don't think that it would earn any credit.
Parker et al (2001)Dear Naomi, Yes, that is fine.
Sherif et al (1954)Dear Jill They should focus on the ACEs or SLEs. Then it would be ok to show the interaction of the two approaches. If they focus on the gene in their response, then it would either not be accepted or not earn high marks.
Study guide: EtiologiesDear Svetlana That is an interesting question, as it doesn't really fit what the guide says. The markscheme indicates that they would accept poverty as an environmental factor. The markscheme included: Relevant factors may...
Exemplar: Brain developmentHi John. Thank you for the resources. I just have one gripe - I find your reporting of the AA cochrane review potentially misleading. I could see it being misread by students in an unfortunate way. It could sound like the review found that AA was...
Health: Treatment for addiction
Jo
Hi John, I know we have said a lot that studies aren't needed/assessed for the Paper 1 Section C, however I can't see how the IB Specimen Paper Example question can be answered without one (in the context of human development, evaluate one or...
Theory of mind