Psychology guide, first assessment 2027, Published February 2025, updated May 2025
Which feature makes a study a true experiment rather than a quasi-experiment?
Question 21 mark
No notes
IB Psychology SL and HL
Spec and skills
Paper scope: Paper 1, Section A; Paper 2
Topic spec Paper 1, Section A
Topic spec Paper 2
Skill: psy-c07-methods
Skill: psy-c07-causality
Knowledge check
Psychology guide, first assessment 2027, Published February 2025, updated May 2025
Researchers compare how well bilingual and monolingual teenagers switch between tasks. Why is this a quasi-experiment?
Question 31 mark
No notes
IB Psychology SL and HL
Spec and skills
Paper scope: Paper 1, Section A; Paper 2
Topic spec Paper 1, Section A
Topic spec Paper 2
Skill: psy-c07-sampling
Knowledge check
Psychology guide, first assessment 2027, Published February 2025, updated May 2025
A student invites whoever is in the school library at lunchtime to take part in her class practical. Which sampling technique is this?
Question 41 mark
No notes
IB Psychology SL and HL
Spec and skills
Paper scope: Paper 1, Section A; Paper 2
Topic spec Paper 1, Section A
Topic spec Paper 2
Skill: psy-c07-sampling
Knowledge check
Psychology guide, first assessment 2027, Published February 2025, updated May 2025
What defines a random sample?
Question 51 mark
No notes
IB Psychology SL and HL
Spec and skills
Paper scope: Paper 1, Section A; Paper 2
Topic spec Paper 1, Section A
Topic spec Paper 2
Skill: psy-c07-sampling
Knowledge check
Psychology guide, first assessment 2027, Published February 2025, updated May 2025
A school has 60% day students and 40% boarders. A researcher wants a sample of 50 that reflects this. What should she do?
Question 61 mark
No notes
IB Psychology SL and HL
Spec and skills
Paper scope: Paper 1, Section A; Paper 2
Topic spec Paper 1, Section A
Topic spec Paper 2
Skill: psy-c07-sampling
Knowledge check
Psychology guide, first assessment 2027, Published February 2025, updated May 2025
Researchers want to interview people who have recently left a small religious group, and no list of former members exists. Which sampling technique fits best?