Which of the following is not a threat to external validity?

a. the experimental situation
b. the Hawthorne effect
c. operationalization of constructs
d. attrition
e. ecological isomorphism

d. attrition

Communication & Mass Media

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Forwarding a research hypothesis for the purpose of ____________ would be inappropriate

a. exploration b. functional explanation c. causal explanation d. none of the above

Communication & Mass Media

What standards, principles, or rules would guide you in deciding what you should talk about in a classroom presentation? 

What will be an ideal response?

Communication & Mass Media