While selecting participants for her study, Jamie draws names from a hat to place participants in groups. Once the participant's name has been selected, she does not put it back in the hat. Jamie is using .
a. sampling with replacement.
b. sampling with duplication.
c. sampling without replacement.
d. sampling without duplication.
Susan is conducting a research study and has developed two hypotheses. She is planning to test against the null hypothesis. The null hypothesis states .
a. there is a relationship between the scores of the dependent variables.
b. there is no difference between the scores of the dependent variables.
c. there is a significant relationship between the scores of the dependent variables.
d. there no significant interest in the independent variables.
Validity is __________.
a. the accuracy of a measure to evaluate what it is supposed to measure.
b. the consistency of a measure to produce similar results on different occasions.
c. the degree to which other researchers can believe in the results.
d. A and B
Dave has developed a research question. In addition, he has developed two hypotheses for his research question. The first hypothesis states there is no difference between the scores on the dependent variables. This is known as the hypothesis.
a. first
b. research
c. null
d. exhaustive
Lisa is conducting a study investigating the effects of ethnicity on humor. Specifically, she has different participants watch comedy routines from several comedians.
For each participant, she records the number of times they laugh for each comedian. Which way is the dependent measure of humor being assessed?
a. reaction time
b. frequency of responses
c. degree of response
d. percent correct
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