Practice IB Psychology (First Exam 2027) Topic 4.4 Data Analysis and Interpretation with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for 4.4 Data Analysis and Interpretation and mirrors Paper 1, 2, 3 style where relevant.
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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, to what extent can we conclude that the behaviour poses a serious risk?
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.
Using the sources, to what extent can we conclude that evening screen use causes poor sleep?
Source A: A trial found a statistically significant improvement in the treatment group (p < 0.05).
Source B: The effect size was small (d = 0.2) with a wide confidence interval.
Source C: An attempted replication found no significant effect.
Using the sources, to what extent can we conclude that the treatment is effective?
Source A: A questionnaire score was used as the measure of 'well-being', and it rose after the programme.
Source B: A separate behavioural measure of well-being showed no change.
Source C: A review questioned whether the questionnaire actually measures well-being.
Using the sources, to what extent can we conclude that the programme improved well-being?
Source A: The difference between the groups was statistically significant.
Source B: The effect size was small and the two distributions overlapped heavily.
Source C: The sample was very large, so even tiny differences reach significance.
Using the sources, to what extent can we conclude that the two groups are meaningfully different?