Answer: C- 12
Step-by-step explanation:
Given : A researcher wishes to examine the influence of employment status (no job, part time, and full time) and academic class (Freshman, Sophomore, Junior, and Senior) on GPA.
Factor 1 = employment status
Factor 2 = academic class
Choices for Factor 1 = 3
Choices for Factor 2 = 4
i.e. Number of treatments are possible in this experiment = (Choices for Factor 1) x (Choices for Factor 2) = 3 x 4 = 12 (Multiplication rule )
Hence, there are 12 treatments are possible in this experiment.
Thus , the correct answer is C- 12.
