Details of this Paper

Chapter 2 How Psychologists Do Research

Description

solution


Question

Question;54. 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 __________.;a. dependent variable;b. control variable;c. independent variable;d. hypothetical variable;55. The;method of psychological research which utilizes a control group, a dependent;variable, and an independent variable is;a. the experiment.;b. the survey.;c. the case study.;d. naturalistic observation.;56. Professor;McSpell designed an experiment to test her hypothesis that exercise will;increase spelling ability. She divided;children into three groups and had one group do 10 minutes of exercises, one;group do 30 minutes of exercises, and the third group do no exercise. She then tested all three groups of children;to see how many words they could spell correctly on a spelling test. In this;experiment, the scores on the spelling test serve as the;a. dependent variable.;b. independent variable.;c. control group.;d. reliability measure.;57. Which of;the following is a strength of experiments?;a. They cannot be repeated by anyone other than the;experimenter.;b. They allow for the establishment of cause-effect;relationships.;c. They are not subject to demand characteristics;since the subjects do not know they are being observed.;d. They allow us to draw definitive conclusions;about behavior in the natural environment based on subjects' behavior in the;laboratory.;58. In an;experiment, the "measurable aspect of the behavior of the subject" is;called the __________ variable.;a. dependent;b. focal;c. independent;d. control;59. The;purpose of an experiment is to discover whether there is a relationship between;the ___________ and the ___________.;a. independent variable, control variable;b. dependent variable, control variable;c. control group, experimental group;d. independent variable, dependent variable;60.;Cause-and-effect conclusions can be drawn from the results of an;experiment because;a. it is almost always performed in a laboratory;setting.;b. statistical analysis can be applied to data from;an experiment.;c. the independent variable is manipulated while;other possible causes of change in the dependent variable are held constant.;d. several groups of subjects, not just one sample;are typically investigated in a laboratory experiment.;61. 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);a. linear relationship.;b. data pattern.;c. independent variable.;d. functional relationship.;62. 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. What was the independent;variable in this experiment?;a. motivation;b. typing speed;c. variation in typing speed;d. manipulation of typing speed

 

Paper#55115 | Written in 18-Jul-2015

Price : $22
SiteLock