Research Methods in Psychology

Review Questions

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1. What are some features of good scientific research?

Good scientific research must have precise hypotheses, replicability, falsifiable theories and hypotheses, and parsimonious explanations.

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2. What is sampling bias?

Sampling bias is a type of error that occurs when a sample isn’t representative of the population from which it is drawn.

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3. Why might it be problematic to rely only on self-report data when doing research?

Self-report data can be misleading. People sometimes intentionally lie, give answers based on wishful thinking, don’t understand the questions asked, or don’t remember information.

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4. Why is it problematic to draw cause-and-effect conclusions based on correlative data?

We cannot draw cause-and-effect conclusions about correlative data because one factor can be related to another factor without causing it.

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5. What does it mean if a researcher claims that a particular result is statistically significant?

If a result is statistically significant, it is probably not due to chance.