Exam 2: How Psychologists Do Research

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 __________.

To obtain objective information,researchers sometimes must deceive their subjects.Ethically,research involving deception must always _________.

As children grow older,their discretionary income usually increases.The best conclusion to draw about the variables age and income are that they are:

Which of the following is a strength of experiments?

In a controlled experiment,the group not subjected to a change in the independent variable,and used for comparison with the group receiving the experimental change,is the __________ group.

The greatest disadvantage of correlation is:

A psychologist,studying pilot trainees,picks a select group of trainees who is hopefully representative of all other trainees.The group of trainees being studied by this psychologist is collectively known to researchers as a __________.

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

Mr.Marshall hired June to collect data from a group of subjects.Neither June nor the subjects were aware of the independent variable that Mr.Marshall had manipulated.This is an example of _______.

A researcher tests the hypothesis that students who study in the room where they take their tests will perform better on the tests than students who study in other rooms.She requires one group to study in the classroom where the exam is given and another group to study in the library.All students take the test in the classroom,and their test performance is compared.In this example,where students study is the:

A researcher wished to study the relationship between high school grades and college grades.Of the following research methods,which would be the most appropriate?

The purpose of an experiment is to discover whether there is a relationship between the ___________ and the ___________.

In psychological studies,randomization is used to ensure that:

Positive correlation shows:

In an experiment,the group of subjects to which the experimental group is compared is called the:

To determine if sugar-rich diets affect hyperactivity in kids,a researcher prepared two daily menus that children would receive for a 30-day period.A high-sugar diet was given to the boys,while the girls had a menu that seemed identical but was not a high sugar diet.At the end of 30 days,the boys and girls were evaluated to determine their levels of hyperactivity.In the study,the high-sugar diet is the ________.

A large group of people whom you want to know about is called a __________.

To determine if sugar-rich diets affect hyperactivity in kids,a researcher prepared two daily menus that children would receive for a 30-day period.A high-sugar diet was given to the boys,while the girls had a menu that seemed identical but was not a high sugar diet.At the end of 30 days,the boys and girls were evaluated to determine their levels of hyperactivity.In the study,the high-sugar diet is the _______.

A psychologist wanted to see if people are more prone to seek the company of others when anxious than when calm.He randomly assigned half of his subjects to an anxiety group and then told them that,as part of the study,they would receive electric shocks.He did not frighten the other group of subjects.Finally,he recorded how many subjects in each group chose to be "tested" in a group setting and how many chose to be "tested" alone.What was the independent variable in this study?

Anything that follows a response,making that response more likely to recur,is