Random assignment of participants to the experimental and control groups increases the likelihood that
a. the two groups will be similar.
b. the two groups will be different.
c. the independent variable will not have a strong effect.
d. if outcome differences are found, we can be confident they were caused by preexisting differences.
Answer: a. the two groups will be similar.
You might also like to view...
A result that is significant at the .05 level indicates that ________
a. the result was obtained purely by chance and is not real. b. the probability that the result is due to real differences between groups is .05. c. there is a positive relationship between variables. d. the probability that the result occurred by chance is low, and therefore the result is probably real.
Individuals have different __________ styles, that is, distinctive and enduring styles they use to deal with their everyday tasks of perception, problem solving, and decision-making
Fill in the blank(s) with correct word