State whether the following situations describe a between-subjects design or a w

Question

State whether the following situations describe a between-subjects design or a within-subjects design. la) A sports psychologist compares mental functioning in a sample of athletes in four different sports. bl A biopsychologist tests the time course for the release of a neurohormone before, during, and following a task thought to cause its release. (c) A college professor compares the average class grade for students in each of three sections of a statistics course. (d) A behavioral psychologist allows a sample of children to play with four toys of various colors and has them rate how much they like playing with each toy. The psychologist compares mean ratings for each toy

Explanation / Answer

A within-subjects design is an experiment in which the same group of subjects serves in more than one treatment. While,

As we said, Lorinda is giving a math test to two groups, boys and girls, and she wants to see if there's a difference between the two groups. What she's looking for are between-group differences, or data that shows that two or more groups are different.

a) Assuming all athletes play different sports

So, Between groups

b) Witihin as same people are used for different treatments.

c) Between

d) Within as all toys are subjected to same set of children

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