Research methods in psychology worksheet with answers

Free printable Research methods in psychology worksheet: 8 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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1.Easy

In research ethics, debriefing means:

  1. ARemoving names from the data
  2. BAsking participants for informed consent before the study begins and explaining the procedure
  3. CExplaining the true aims of the study to participants after they take part
  4. DPaying participants for their time
2.Easy

In an experiment, the variable that is measured to see whether it is affected by the manipulation is the:

  1. AIndependent variable
  2. BDependent variable
  3. CControl variable
  4. DExtraneous variable
3.Easy

Which is an example of qualitative data?

  1. AReaction times in milliseconds
  2. BNumber of words recalled
  3. CInterview transcripts describing feelings about work
  4. DScores on a 20-item memory test
4.Medium

A 95% confidence interval for a mean of 50 is 46 to 54. What is the most accurate interpretation?

  1. AThe result is not significant
  2. B95% of the individual participants in the sample scored between 46 and 54 on the measure
  3. CThe procedure used produces intervals that contain the true mean 95% of the time
  4. DThere is a 95% chance the sample mean is 50
5.Medium

Which kind of data is collected with an open question in an interview?

  1. AQualitative data
  2. BNominal quantitative data only
  3. CInterval data
  4. DRatio data
6.Medium

A cross-sectional study compares 20-, 40- and 60-year-olds on technology use at the same time. Which problem may confound the age comparison?

  1. AOrder effects
  2. BPractice effects
  3. CFloor effects
  4. DCohort effects
7.Hard

A researcher compares three or more group means. Why is a one-way ANOVA used instead of several t-tests?

  1. AANOVA always finds larger effects than the equivalent set of t-tests would
  2. BMultiple t-tests inflate the overall Type I error rate
  3. Ct-tests need qualitative data
  4. Dt-tests cannot handle numbers above 100
8.Hard

Effect size measures such as Cohen's d are reported because they:

  1. AShow how large an effect is, regardless of sample size
  2. BTell how many participants dropped out
  3. CReplace the need for any hypothesis
  4. DShow whether the result is statistically significant at the chosen alpha level

Answer key

  1. 1. C · Explaining the true aims of the study to participants after they take part
  2. 2. B · Dependent variable
  3. 3. C · Interview transcripts describing feelings about work
  4. 4. C · The procedure used produces intervals that contain the true mean 95% of the time
  5. 5. A · Qualitative data
  6. 6. D · Cohort effects
  7. 7. B · Multiple t-tests inflate the overall Type I error rate
  8. 8. A · Show how large an effect is, regardless of sample size

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