Question 3 Edgar is a psychologist interested in the
effects of the presence of self-checkout
counters on customer satisfaction. He
convinces a large clothing company to
consider adding self-checkout counters to
some of its stores. Edgar's hypothesis is
that if self-checkout counters are
introduced, customers will be more
satisfied. He is proposing an experimental
study to examine this belief.
• Identify the dependent variable in
the study.
• Identify the experimental group in
this study.
• Provide an example of a valid
operational definition of "customer
satisfaction."
• Explain how random assignment
would help establish cause and effect
in this experiment.
• Explain why it would be difficult to
use a double-blind procedure for this
study
Suppose Edgar's hypothesis is supported.
• Explain how internal locus of control
might be related to these findings.