Dr. Sheffield wants to investigate the causal relationship between frustration and memory. She divides participants into two groups using random assignment. One group is given a problem to solve that has no solution, inducing frustration, while the other group is given a problem to solve that has a solution. Then both groups have their memory tested. The group that is in the frustration condition can also be called the:a. comparison groupb. control groupc. experimental groupd. posttest group

Experimental group

Explanation:

In scientific research, the experimental group is the one that allows studying a variable by is, this being a vital part of the scientific method. When a controlled experiment is carried out, two equals are carried out where one of them is the experimental group, that is, the one that will be tested.

In research, the researcher manipulates one or two study variables to control the variables and their effect on behaviors.

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