In a pretest-posttest nonequivalent control group design, having ...

[geodog55]

In a pretest-posttest nonequivalent control group design, having a control group can help rule out the confounding effects of
 
  a. history, maturation, and regression to the mean.
  b. age, experimenter bias, and Hawthorne-type effects.
  c. gender bias, selection, and interviewer bias.
  d. interpretation bias, falsification of data, and instrumentation.

Question 2

In scientific methodology, researchers tend to pursue four different goals: 1) description; 2) prediction; 3) understanding; and 4)
 
  a. proving
  b. funding
  c. publication
  d. application

[chereeb]

Answer to Question 1

a

Answer to Question 2

d

[geodog55]

TYSM

[robbielu01]

Thanks for the timely response, appreciate it