An environmental psychologist studies the effects of proximity to ...

[Bernana]

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

[lin77x]

Answer to Question 1

C

Answer to Question 2

b

[Bernana]

Excellent

[robbielu01]

Thanks for the timely response, appreciate it