1.Easy
Ranking runners as first, second and third produces which level of data?
- ARatio
- BInterval
- CNominal
- DOrdinal
2.Easy
A correlation of −0.85 indicates:
- AA weak negative relationship
- BA strong positive relationship
- CNo relationship
- DA strong negative relationship
3.Easy
A case study is:
- AA survey of thousands of randomly selected people from the general population
- BAn in-depth investigation of one person, group or event
- CA laboratory experiment with two conditions
- DA statistical review of many published studies
4.Medium
A Cronbach's alpha of 0.88 for a 15-item anxiety scale indicates:
- AThe scale has a significant effect on anxiety
- BThe scale predicts future anxiety well
- CGood internal consistency of the items
- DScores are stable over six months
5.Medium
Why are behaviour categories in an observation operationalised before data collection?
- ASo participants know exactly what is being recorded
- BSo the hypothesis can be changed after the data are seen
- CSo the observation becomes an experiment
- DSo observers record the same behaviours consistently, improving reliability
6.Medium
Split-half reliability involves:
- ATesting two halves of the sample at different times
- BUsing two observers for half the sessions each
- CSplitting the sample into an experimental and a control group and comparing their scores
- DComparing scores on two halves of the same test to check internal consistency
7.Hard
A researcher manipulates mood by showing a sad film, then asks participants to rate how sad they feel before the main task. Why is this rating included?
- AAs a manipulation check to confirm the IV worked as intended
- BTo debrief participants about the aims
- CAs the main dependent variable of the study
- DTo counterbalance the order of conditions
8.Hard
A study finds that the effect of stress on illness is weaker in people with strong social support. Social support is acting as a:
- AConfound
- BDependent variable
- CMediator
- DModerator
Answer key
- 1. D · Ordinal
- 2. D · A strong negative relationship
- 3. B · An in-depth investigation of one person, group or event
- 4. C · Good internal consistency of the items
- 5. D · So observers record the same behaviours consistently, improving reliability
- 6. D · Comparing scores on two halves of the same test to check internal consistency
- 7. A · As a manipulation check to confirm the IV worked as intended
- 8. D · Moderator
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