In a within-subjects study that extends over a relatively long ...

[lilldybug07]

In a within-subjects study that extends over a relatively long time, it is possible that there will be systematic changes in the participants' skills or knowledge during the time of the study. When these changes influence the participants' scores, causing scores at the end of the study to be different from scores at the beginning, the effect is called ____.
 
  a. history effects
 b. instrumentation
 c. maturation
 d. regression toward the mean

Question 2

A(n) ____ is typically used to assess behaviors of people, organizations, or processes.
 
  a. index
 b. instrument
  c. test
 d. scale

[morrie123456]

Answer to Question 1

c

Answer to Question 2

a

[lilldybug07]

Thanks for the timely response, appreciate it

[xiazhe]

Excellent