In the wake of corporate scandals, a researcher wanted to compare two types of business ethics tutorial (Tutorial ‘A’ and Tutorial ‘B’). Subjects (students in an MBA program) were obtained (after informed consent). First, they were all collected in a large lecture hall where they filled out a well-respected and extensively-designed pencil-and-paper multiple-choice ‘pretest’ questionnaire to gauge ethical behavior in various hypothetical scenarios (scored on a 200-point scale). Then, the subjects were randomized to one of three treatments: Tutorial A (a one-hour ethics tutorial), Tutorial B (a different one-hour ethics tutorial), or a control group (who were allowed to sit for the hour and browse the internet). After the treatment, all the subjects were brought together and made to take a ‘post-test’ questionnaire on ethics (similar to the pre-test). The outcome of interest is the difference in scores.
1 | data("ethics")
|
A dataframe with 87 rows and 5 columns.
treatment
The hour-long treatment given to each participant.
A
One-hour ethics tutorial.
B
A different one-hour ethics tutorial.
C
Control group.
age
Age in years.
pre
Score out of 200 on the pre-test questionnaire.
post
Score out of 200 on a similar ethics questionnaire taken after treatment.
diff
The change in score, calculated as Post-Pre.
Description text from Gordon Weinberg.
Simplified column names.
36-202 Homework 5 Data.
Obtained from the Spring 2016 edition of 36-202.
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