1.Easy
A hypothesis that predicts a difference but does not say in which direction is called:
- AAn operational definition
- BNon-directional (two-tailed)
- CA null hypothesis
- DDirectional (one-tailed)
2.Easy
A variable other than the IV that changes systematically with the IV and could explain the result is called a:
- AConfounding variable
- BControl variable
- CDemand characteristic
- DDependent variable
3.Easy
Test-retest reliability is assessed by:
- AChecking whether the items appear, on the surface, to measure what the test claims to
- BHaving two observers code the same behaviour
- CComparing a new test with an established one
- DGiving the same test to the same people on two occasions and correlating the scores
4.Medium
In a correlation, r = 0.40. What proportion of variance in one variable is shared with the other?
- A16%
- B60%
- C40%
- D4%
5.Medium
In a positively skewed distribution, such as income:
- AThe mean is greater than the median
- BThere are no extreme scores
- CThe mean is less than the median
- DThe mean and median are always equal
6.Medium
Standardised instructions are used in an experiment so that:
- AParticipants can choose their own conditions
- BThe researcher can adapt the procedure to suit each participant's needs
- CAll participants receive the same information in the same way
- DThe results become statistically significant
7.Hard
In thematic analysis, the analyst mainly:
- ACalculates the mean score of each theme to compare them statistically
- BTests a numerical hypothesis
- CIdentifies recurring patterns of meaning across qualitative data
- DCounts word frequencies only
8.Hard
After analysing the data, a researcher writes the introduction as if an unexpected finding had been predicted all along. This is called:
- ADebriefing
- BOperationalisation
- CHARKing (hypothesising after the results are known)
- DCounterbalancing
Answer key
- 1. B · Non-directional (two-tailed)
- 2. A · Confounding variable
- 3. D · Giving the same test to the same people on two occasions and correlating the scores
- 4. A · 16%
- 5. A · The mean is greater than the median
- 6. C · All participants receive the same information in the same way
- 7. C · Identifies recurring patterns of meaning across qualitative data
- 8. C · HARKing (hypothesising after the results are known)
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