If one uses a subject variable in a study, a. the study cannot ...

[Mr3Hunna]

If one uses a subject variable in a study,
 
  a. the study cannot be a within-subjects design.
  b. groups are not equal in number at the start of the experiment.
  c. causality cannot be attributed to the subject variable.
  d. the logic of experimentation is weakened.

Question 2

In a 2 x 2 experiment, if you portray the results by using a line graph, an interaction is indicated by:
 
  a. parallel lines.
  b. nonparallel lines.
  c. superimposed lines.
  d. none of these

[zacnyjessica]

Answer to Question 1

C

Answer to Question 2

B

[Mr3Hunna]

Excellent

[emsimon14]

Gracias!