Exam 7: Control Techniques in Experimental Research

Participants in a memory experiment are asked to learn a list of high-imagery words and then to learn a list of low-imagery words. Using the same participants in each condition could cause it to be confounded by

The omission of or alteration of the truth of information give to participants in a research study can be done to

The most basic and simplest matching technique is to

The "sensitivity" of an experiment refers to its ability to detect any differences in performance, however small, between the two groups. In one technique to improve sensitivity the experimenter uses matching of participants across groups, assuring that

One way in which experimenter expectancy effects can be manifested is in errors in recording data. What is the best way to control this?

Dr. Bassuk is conducting a pilot study for his newest research project. During this pilot study, he has the participants verbalize their thoughts as they perform the experiment. This technique is called the

In the context of experimental design, "double blind" refers to the situation in which

It is usually impossible to eliminate the effects of extraneous variables. However, it may be possible to eliminate

One way to be sure that all "groups" in an experiment are equivalent except for their experience with the independent variables) is to use the same participants in all experimental conditions. However, this approach carries the danger of confounding in that

Which of the control techniques has the most power to insure that unidentified, extraneous variables do not have differential effects on the different groups in the experiment?

In what counterbalancing technique would you present experimental treatments to participants in one order, and then in the reverse order?

If a researcher is worried about experimenter bias during the interaction between experimenter and participant, _________could totally control for this bias by removing the experimenter from interaction with the participant completely.

The only control technique that can account for both known and unknown sources of extraneous variation ise.g., within designs require fewer participants, offer better control, but also may demand too much participant time and offer clues to the researcher's hypothesis).

What is the primary benefit of matching?