Exam 12: Experimental Control and Internal Validity

A threat to internal validity that refers to the fact that the researcher knows the research hypothesis and thus causes an invalid confirmation of the research hypothesis is known as

A confounding variable is an example of ___________, whereas an extraneous variable is an example of __________.

Manipulation checks are

Which of the following types of validity refers to the extent to which the measured variables actually measure the conceptual variables?

Which of the following types of validity is threatened when self presentation occurs?

A potential problem with random assignment to conditions is that

Why would a researcher most likely use a "blind" experimenter?

In a study manipulating levels of aggression, participants are asked to complete a Likert Scale indicating their current state of aggression. This measure is given after the dependent measure has been assessed. This measure will likely serve as a

Which of the following is a possible disadvantage of before after research designs?

Extraneous variables

A researcher found that conclusions regarding his research were incorrect because a Type 1 error had been made. His error represents a type of

Tova is participating in a study involving media awareness and conformity. After viewing a short film she fills out a conformity questionnaire. As Tova fills out the questionnaire, the questions lead her to guess that the research hypothesis is that the film will increase conformity. In this case the questions serve as a

In scientific research, validity refers to

Which of the following is NOT a method by which experimenters control for extraneous variables?

Which of the following refers to a false or misleading statement given by the experimenter about what is being studied that is used to reduce the possibility of demand characteristics?

Experimental realism is the extent to which

Manipulation checks are particularly useful

A baseline measure is

When a participant's expectation about what effect an experimental manipulation is supposed to have influences the dependent measure independently of the actual effect of the manipulation, the change in the dependent measure is called

Which of the following sets of the sequential assignment of participants to four conditions represents the use of blocked random assignment to conditions?