Exam 2: The Tools of Psychological Research

As Behavior X increases, Behavior Y is expected to decrease.The correlation between X and Y is:

Assessing whether two variables vary together in a systematic way involves computing a mathematical index called a:

When a correlation is not statistically different from zero:

While the results of Dr.Menger's experiment generalize to the real-world, but there were confounding variables in the study.This means Dr.Menger's research has:

Methods designed to observe and describe behavior are generally known as ____________________.

Defining TV violence in terms of the number of times someone hits, kicks, or yells at a person or an object within a one-hour episode of a specific show would:

The mode for a data set is:

Channel 6 News heard reports that security regulations were being ignored at the local airport. They had a reporter get a job at the airport so he could find out how security was maintained.This technique is:

When Hyacinth creates a scatterplot that shows the number of bystanders who witness an emergency and the length of time for help to be given, the points on the scatterplot fall roughly along a line that slants down and to the right.Based on her scatterplot, Hyacinth can conclude that the number of witnesses and the time to offer help:

As Behavior X increases, Behavior Y is expected to increase.The correlation between X and Y is:

Dr.Wilson sets up an experimental study to investigate how self-esteem is affected by feedback from teachers.During the study, third-grade teachers administer a short quiz where each child earns the same score (5 out of a possible 10 points).Half the children are told that this is a very good score, while the rest are told that it is an average score.In this study, the dependent variable is:

Researchers studying the effects of alcohol consumption tested the physical coordination skills of 21-year-old men who were first assigned to drink a beverage with either 2 ounces of alcohol or no alcohol.In this study, the control group is:

Some experiments use a(n) ____________________ procedure in which participants are not informed about whether they are in the experimental or control group.

One method that can control for experimenter expectancy effects is to use:

In research study, there is ____________________ if the results can be generalized to other situations.

Angelica took part in a research study where she had to sit alone in a darkened room for 30 minutes before completing a brief questionnaire about her future goals and plans.When she had completed the questionnaire, she was told the experiment was over.Angelica never really understood the purpose of the study, and she wasn't sure why she had to wait in the darkened room before filling out the short questionnaire.In this case, it would appear that the researchers who conducted the experiment:

When a researcher records naturally occurring behavior, without any interference, the researcher is engaged in:

A confounding variable is any factor in an experiment that has the same value in both the experimental and control groups.

If a correlation coefficient has a positive sign, it indicates that:

Jiao was a participant in an observational study, and reactivity occurred.Technically, this means: