An experimental psychologist interested in the relationship between alcohol consumption and memory conducts a survey of 213 students in his cognitive psychology course. He asks them to report their consumption of alcohol (alcoholic drinks consumed per week). He plans on conducting an analysis of these data together with the grade point averages of the same students.
a) What names would you give the independent and dependent variables?
b) Is (are) the dependent variable(s) discrete or continuous?
c) What scale of measurement (nominal, ordinal, interval or ratio; and continuous or discrete) is used to measure the independent variable?
d) What research method is being used (experimental or observational)? Explain why you conclude that the research method is one or the other.
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