You want to replicate Barlett et al.'s research on action figures and negative body image in young ...

You want to replicate Barlett et al.'s research on action figures and negative body image in young adult males. Your independent variable has three levels: no action figures, highly muscular figures, and moderately muscular figures.

You want to conduct a between subjects design. How many total participants will you need if you want 10 participants in each level of the IV?

a. 10 participants
b. 30 participants
c. none of the above
d. cannot be determined

When a change in the dependent variable could be due to participants systematically dropping out of an experiment, __________ is a threat to internal validity.

a. attrition
b. testing
c. diffusion of treatment
d. instrumentation

A research topic is narrow in scope.

Indicate whether the statement is true or false

Of all the types of scales, only a(n) scale has a true zero value.

a. ordinal
b. nominal
c. ratio
d. interval

In order to combat any threats to internal validity during sampling procedures, researchers should use .

a. external validity.
b. systematic sampling.
c. random sampling.
d. random assignment.

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You want to replicate Barlett et al.'s research on action figures and negative body image in young ...

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