Source A: A headline reports that a behaviour 'doubles the risk' of an outcome.
Source B: The absolute risk rose from 1 in 10,000 to 2 in 10,000.
Source C: The estimate came from 12 cases in total.
Using the sources, can we conclude that the behaviour poses a serious risk?
A researcher measured autonomy support and motivation once with a self-report survey and concluded that autonomy support boosts motivation.
Source A: A survey found a negative correlation (r = -0.30) between evening screen use and sleep quality.
Source B: An experiment that reduced evening screen use produced a modest improvement in sleep.
Source C: Stress predicted both heavier screen use and poorer sleep.
Participants from a non-Western community matched photographs of facial expressions to emotion words using a labelling task developed and validated in the United States. They matched fewer expressions to the 'correct' labels than US participants, and the researcher concluded they were 'worse at recognising emotions'.
Practice IB Psychology (First Exam 2027) Topic 4. Extensions with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for 4. Extensions and mirrors Paper 1, 2, 3 style where relevant.
Get instant solutions, detailed explanations, and build confidence with questions aligned to IB examiner expectations.
