Read the brief study descriptions. Identify whether the study is an observationa

Question

Read the brief study descriptions. Identify whether the study is an observational or correlational study or a quasi or true experiment for both questions..

To investigate the effects of classical vs. popular music on productivity, some workers were selected at random to work while classical music was being played while the remaining ones worked while popular music was played. Average daily production rates were measured for each group.

1a. Select one:

a. true experiment

b. observational study

c. correlational study

d. quasi experiment

1b. Scores of college freshmen on the Beck Depression Scale were correlated with their GPA.

Select one:

a. true experiment

b. observational study

c. quasi experiment

d. correlational study

Explanation / Answer

1). (a). (a). True experiment.

Because an experiment where random selection is done here hence true experiment.

2). (b). (d). Correlational study.

Because two variable's correlation is being checked.

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