Exam 81: Understanding Descriptive and Inferential Statistics for Psychological Research

Inferential statistics allow us to generalize from the behavior of small groups of participants to that of the larger groups they represent.

An estimate of how often experimental results could have occurred by chance alone are provided by using tests of __________.

In looking over all of his students' grades on the last test,Dr.Abbot notices that there appears to be many high scores in one of his three classes.To determine if this class did perform better than the other two classes on this same test,Dr.Abbot decides to compute a mean and median for each class.To compare his classes,Dr.Abbot is using

A graph that plots the intersection of paired measures,that is,the points at which paired X and Y measures cross is called a

For his study,Dr.Tabor has chosen the most commonly used correlation coefficient,which is the

Professor Warren calculated the mean,median,and mode of the scores made on the midterm exam.These descriptive statistics are known as

Regarding correlations,which of the following statements is FALSE?

Which of the following is NOT an example of a correlational study?

A researcher wants to find out if a new math program is superior to the old math program that is used to teach college algebra at a community college.She selects 400 students from the total student body of 4,000 students to participate in this study.The 400 students would be considered the

The range is a

The difference between the highest and lowest scores is known as the

When a psychologist wishes to generalize results to an entire population,he or she would use _______ statistics.

Using the data she has collected,Jasmine breaks down the entire range of possible scores into classes of equal size and then records the number of scores falling into each class onto a table to form what is known as a(n) ___________.

For the numbers 10,17,2,9,and 15,the range is _______.

Which of the following is made by breaking down the entire range of possible scores into classes of equal size and then recording the number of scores falling into each class?

Researchers usually cannot use populations when doing their studies because

Which of the following provide an estimate of how often experimental results could have occurred by chance alone?

Which of the following correlation coefficients indicates the strongest relationship?

Dr.Rodriquez discovers that the more education people have,the more money they tend to earn.Dr.Rodriquez has illustrated a(n) _______ correlation.

How much must two means differ before we can consider the difference "real" and not due to chance? To answer this question,we must use