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.

Required:
a. Identify the dependent variable in the study.
b. Identify the experimental group in this study.
c. Provide an example of a valid operational definition of "customer satisfaction."
d. Explain how random assignment would help establish cause and effect in this experiment.

Why did the settlement of east texas stop in the late 1710s

Black death spread because of what problem in medieval europe? which one is it i need the answer quick . a- overcrowded cities b-too many farm animals c-not enough qualified doctors d-all of the above

Horton automatics and the industrial division of the communications workers of america, the union that represented horton’s workers, negotiated a collective bargaining agreement. if an employee’s discharge for a workplace-rule violation was submitted to arbitration, the agreement limited the arbitrator to determining whether the rule was reasonable and whether the employee had violated it. when horton discharged employee ruben de la garza, the union appealed to arbitration. the arbitrator found that de la garza had violated a reasonable safety rule, but “was not totally convinced” that horton should have treated the violation more seriously than other rule violations. the arbitrator ordered de la garza reinstated. can a court set aside this order