Research methods in psychology worksheet with answers

Keeping participants' personal information private and not identifying them in reports is called:

1. ADeception
2. BInformed consent
3. CDebriefing
4. DConfidentiality

A Type II error occurs when a researcher:

1. ARejects a null hypothesis that is actually true, finding an effect that is not there
2. BUses the wrong statistical test
3. CFails to reject a null hypothesis that is actually false
4. DMeasures the wrong dependent variable

A hypothesis that predicts a difference but does not say in which direction is called:

1. AA null hypothesis
2. BAn operational definition
3. CNon-directional (two-tailed)
4. DDirectional (one-tailed)

In a content analysis, inter-rater reliability is checked by:

1. AHaving two researchers code the same material and comparing results
2. BAsking participants afterwards whether the researcher's coding of their material is correct
3. CCoding the material twice in one day
4. DUsing a larger sample of materials

A study is preregistered. This means that:

1. AThe hypotheses, methods and analysis plan are recorded publicly before data collection
2. BThe results were checked and approved by a second, independent statistician before publication
3. CThe study has already been published
4. DParticipants register their consent online

Which test is suitable for comparing the means of two independent groups with interval data that are roughly normal?

1. AChi-square test
2. BPearson correlation
3. CWilcoxon signed-rank test
4. DIndependent samples t-test

The "replication crisis" in psychology refers to:

1. AMany published findings failing to reproduce in new studies
2. BJournals being legally required to reject all replication studies submitted
3. CA shortage of participants for experiments
4. DCopying of questionnaires without permission

A study finds that the effect of stress on illness is weaker in people with strong social support. Social support is acting as a:

1. AModerator
2. BConfound
3. CDependent variable
4. DMediator