Most research questions are developed from everyday experiences, functional problems, prior research, and literature reviews.
Indicate whether the statement is true or false
When a change in the dependent variable could be due to the participant's expectation that change will occur, __________ is a threat to internal validity.
a. diffusion of treatments
b. instrumentation
c. placebo effect
d. demand characteristics
In Chapter 7 we discussed a study on monitor size. In Chapter 11 we revisited this study and discovered it was actually a within subjects design. The research matrix is given below.
17 inch 19 inch 21 inch
25 participants 25 participants 25 participants
If you wanted to give every participant in the study a piece of paper with the contact information of the researchers, how many pieces of paper will you need for this within subjects design?
a. 25
b. 75
c. 50
d. 100
Aaron has just finished collecting data for his study. He has a total of 85 participants. The number of participants in his study is known as the .
a. population collective.
b. data sample.
c. population.
d. sample size.
Most research questions are developed from work done by others.
Indicate whether the statement is true or false
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