Essay Questions
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1. Discuss the similarities and differences between causation and correlation. Provide examples of each and discuss ways in which correlation may be mistaken for causation in psychological research.
2. Discuss the differences between the following four scales of measurement: nominal, ordinal, interval and ratio scales. Where is it appropriate to use these different scales and where is it inappropriate? What scales are appropriate for measuring the following: (a) height, (b) mood, (c) facial attractiveness?
3. How would you design a study to investigate the relationship between alcohol and reaction time? What alternative study designs would be available to you, and what would be their relative strengths and weaknesses?