Exam 2: How Psychologists Do Research

Experimenter bias can best be controlled using ________.

As part of an assignment,Bill's class was asked to complete an anonymous questionnaire on prejudice.Which research method was Bill's professor using?

Research in which a carefully selected group of people is asked a set of predetermined questions in interviews or through questionnaires is known as __________.

A group of students was asked to write an essay in support of the legalization of marijuana.They were paid $.50.Another group of students received $2.00 for the same task.It was subsequently found that those students who received only $.50 developed a more positive attitude towards the legalization of marijuana.The experiment in this study was using (the)

A scientist,conducting a research study on sleep and learning,questions her own objectivity and decides to let a third person,not associated with conducting the experiment,score the tests.The scientist is probably trying to eliminate __________.

In an experiment on the effects of level of motivation on the performance of typists,the researcher randomly assigned one third of her subjects to each of three levels of motivation (and then induced different levels of motivation in the three groups).She measured the average words typed per minute by each group,and found that performance was highest under medium motivation,average under low motivation,and worst under high motivation.The regular variation in performance (average,best,worst)as motivation was changed (low,medium,high)is called a(n):

When you watch dogs play in the park or watch how your professors conduct their classes,you are engaging in a form of __________.

The method of psychological research which utilizes a control group,a dependent variable,and an independent variable is

A correlation tells us:

If explanation of the causes of thoughts,feelings,and behavior is a psychologist's goal,then the __________ method of research should be used.

The purpose of a control group in an experiment is to:

In an experiment,a researcher manipulates one variable to see how it affects a second variable.The second variable,which is observed for any possible effects,is called the __________.

Cause-and-effect conclusions can be drawn from the results of an experiment because:

A "fake treatment" is one way to define a ______.

A researcher,based on her review of relevant scientific studies,believes that there is a relationship between the frequency of a baby's crying and whether it was nursed at set intervals or on a demand schedule.If this belief were tested by experimentally manipulating feeding schedules,the feeding schedule would be called the:

A researcher,based on her review of relevant scientific studies,believes that there is a relationship between the frequency of a baby's crying and whether it was nursed at set intervals or on a demand schedule.If this belief were tested by experimentally manipulating feeding schedules,frequency of crying would be called the:

A subset of cases selected from a larger population is a __________.

In an experiment concerning the effect of auditory feedback on accuracy in writing computer programs,one group hears a computer-simulated voice say each character or symbol that they type in as they are writing their programs.The second group does not receive the auditory feedback as they type their program lines.This second group is the ___________ group.