Author Question: An environmental psychologist studies the effects of proximity to an elevated train line on school ... (Read 27 times)

Bernana · **on:** Jun 19, 2018

An environmental psychologist studies the effects of proximity to an elevated train line on school performance in children by comparing a group of children who live within one city block of an elevated train line to a matched sample of children from the same school who live at least ten blocks away from the train line on a standardized test of reading comprehension. This is an example of

a. a within-subjects design.
b. a correlational study.
c. a quasi-experiment.
d. an observational study.

Question 2

A researcher records the change in weight (gain or loss) during the first semester of college for each individual in a group of 25 freshmen, and calculates the average change in weight. The average is an example of a ____.

a. parameter
b. statistic
c. variable
d. constant