Exam 9: Conducting Experiments

Phillipe, a researcher, examined the effect of lighting on learning. Randomly assigned participants learned material while using a 100-watt or a 125-watt bulb. He found no differences between the two groups. The nonsignificant results may have occurred because of _____.

Which of the following is an assumption in the context of staged manipulations?

When is it adverse to use strongest possible manipulations?

How can expectancy effects be reduced?

Dr. Norman studies the tension in a participant's neck muscles as she completes a strenuous physical task. Which physiological measurement variable is Dr. Norman likely to use?

Matt, a researcher, has a confederate drop a stack of papers in front of one person or a group of people. She then measures the amount of time it takes for the confederate to receive help in picking up the papers. The manipulation employed in this experiment would be an example of a _____ manipulation.

In the context of staged manipulations, a confederate is a person who:

In staged manipulations, a(n) _____ appears to be another participant in an experiment but is actually part of the manipulation.

Williams, a criminal investigator, measures a suspect's change in perspiration in response to questions regarding a burglary case. Which type of physiological measure is the investigator using?

Why is it necessary to prepare a research proposal?

To conduct a research on the influence of personality on intelligence, Richard allots extroverts to group A and introverts to groupB. Being an introvert, Richard assumes that group B is more likely to be intellectually superior and later concludes that extroverts tend to score less than introverts in IQ tests. Which of the following does this scenario exemplify?

A(n) _____ provides evidence to indicate what brain processes are involved while an individual works on a cognitive task.