Where does random selection happen in the experiment? Where does random assignment happen in the experiment? they are divided randomly into two groups, all participants are asked to rate their happiness on a scale of 1-10 at the end of each session, at end of the study, researchers compare the acerafe happiness raring of the outside group to the average happiness rating of the inside exercise group. 400 adults who already exercise regularly are random ly chosen to participate in the study

Question

pick which goeurp they are in ll four

Answer 1

In the context you provided, we can break down the experiment into two key components: random selection and random assignment.

1. Random Selection: This occurs at the very beginning of the experiment when "400 adults who already exercise regularly are randomly chosen to participate in the study." This means that from a larger population of regular exercisers, a random sample of 400 individuals is selected to ensure that the sample is representative of that population.

2. Random Assignment: This happens when the participants are "divided randomly into two groups." After the 400 individuals have been selected, they are randomly assigned to either the inside exercise group or the outside group. This random assignment is crucial for ensuring that the two groups are similar in all respects other than the treatment they receive, thus allowing for a fair comparison of happiness ratings at the end of the study.

To summarize:

• Random Selection: The initial selection of 400 regular exercisers from a larger population.
• Random Assignment: The process of randomly dividing these 400 participants into two groups (inside exercise group and outside group).