Between-subjects designs are often used in research on complex ...

[justinmsk]

Between-subjects designs are often used in research on complex cognitive processes because
 
  a. they reduce the variability of observations.
  b. they require fewer participants compared to within-subjects designs.
  c. they prevent the occurrence of carryover effects.
  d. they increase our confidence in the reliability of the results.

Question 2

In an observational study of autistic children, you record how much time each child spends playing alone during a 30 minute observation period. This is an example of the ____ method of quantifying behavior.
 
  a. frequency
  b. duration
 c. interval
 d. individual

[gasdhashg]

Answer to Question 1

B

Answer to Question 2

b