Exam 9: Conducting Studies

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

In the early stages of a research project,the researcher would want as _____ as possible in order to demonstrate that a relationship between variables exists.

Dr.Mills measures participants' brain-wave activity in order to study the brain's response to sounds of varying frequencies.Dr.Mills is likely to be using which type of physiological measure?

Which of the following physiological measures would you recommend a researcher use to compare brain images between individuals with and without Alzheimer's disease?

Which of the following statements is true regarding the use of staged manipulations? Staged manipulations

Experiments conducted in field settings generally minimize which one of the following?

Dr.Columbo measures the tension in a participant's neck muscles as she completes a strenuous physical task.Dr.Columbo has most likely used a(n)

Investigators will sometimes use deception in the procedures to address the problem of

In a study examining the effect of appearance on judgments of criminal behaviour,a researcher asks questions about the surroundings and the victim in order to disguise the dependent measures in the study.These unrelated questions are referred to as

You conduct an experiment on the effect of low and high anxiety on test performance.The results turn out nonsignificant.Now you don't know if anxiety truly has no effect on performance or whether you had faulty procedures.How could this have been avoided? You could have conducted a(n)

The strongest possible manipulation should not be used if it results in

Rachel is interested in math skills of boys versus girls in the sixth grade.She administers a series of math problems to both groups and asks them to solve as many problems as they can within a 15-minute period.She finds that both groups were only able to answer only 2% of the problems.Rachel's results may be due to a _____ effect.

A researcher designed an experiment to test the effects of a top-secret vitamin supplement on the strength of weight-lifters.Thimble lifting would not be a useful measure of strength because thimble lifting

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.

A researcher wants to examine the effect of noise level on reading comprehension.He finds that regardless of the noise level,all participants tested received the maximum scores for their performance.The results may be due to a _____ effect.

Ralph has a confederate cut in front of a person who is second or ninth in line at a grocery store checkout counter.He then records the number of verbal responses towards the confederate as a measure of aggression.The manipulation employed in this study is an example of a _____ manipulation.

When participants are not aware of whether they are in the experimental or control condition,the researcher has used a ________ technique.

When a researcher submits a paper to a journal for publication,other researchers knowledgeable in the area of research carefully scrutinize the paper and recommend acceptance or rejection.This process is known as

Bob is conducting research on high school students' motivation.He believes one group of students is more motivated than another simply because they are in an honors class.This belief illustrates a(n)

Statistical analyses of the data is