Author Question: Kathryn has completed a study and failed to reject the null when the null hypothesis was true. ... (Read 127 times)

darbym82 · **on:** Jul 13, 2018

Kathryn has completed a study and failed to reject the null when the null hypothesis was true. Kathryn has made a _________.

a. correct decision.
b. a type I error.
c. a type II error.
d. a type III error.

Question 2

Look at the research matrix below without column headings. If you wanted to have 10 participants for each condition, how many participants would you need for a between subjects factorial design?
Angry Angry
Non-confrontational Confrontational

Exciting Exciting
Non-confrontational Confrontational
Neutral Neutral
Non-confrontational Confrontational

a. 10
b. 20
c. 40
d. 60