Research aims to draw conclusions about relationships among variables. There are a number of threats to validity-factors that interfere with making reliable and clear conclusions. Which of the following is a threat to external validity?
A)The Hawthorne effect
B)The Rosenthal effect
C)Diffusion
D)Contact with clients

Question

Quizplus · Accepted Answer

Threats to external validity are factors that interfere with the ability of research to determine if results can be generalized to the population. The Hawthorne effect is a specific example of the threat of reactivity (which is a type of contextual characteristic threat). Reactivity involves subjects behaving in certain ways because they know they are being observed.

Research Aims to Draw Conclusions About Relationships Among Variables