Exam 4: Basic Concepts in Measurement and Statistics

The average score on a test is

Measurement whose basic property is a rank order of individuals is a(n) _________ level of measurement.

The process of assigning numbers to persons in such a way that some attributes of the persons being measured are faithfully reflected by some properties of the numbers is

If students at Lincoln High School receive Verbal Aptitude Test (VAT) scores with a mean of 100 and a standard deviation of 7.6, while students at Washington High School receive VAT scores with a mean of 120 and a standard deviation of 2.8, we know that

If a large increase on one variable is associated with a large decrease on another variable

The most basic, yet most central, statistical concept for psychological measurement is

Co-variance is the concept that is most important when dealing with

The ________ scale of measurement has a fixed, real zero point.

If the variance on a test is small, we know that

A test which yields consistent scores when a person takes two alternate forms of the test is __________.

In order to understand fully which attributes are being measured by a test, one must examine the ________ of the test.

Psychological tests attempt to measure

Ratio scales are rare in psychological measurement because

Correlations are often illustrated by using

If a score on an agility scale identifies the person being rated, rank-orders agility, and indicates relative differences in agility, the scale exhibits a(n) _______ level of Measurement.

An attempt to identify the basic underlying variables which account for the correlations between actual test scores is done statistically through

If an increase on one variable is associated with an increase on another variable, the variables are

A measurement scale which indicates relative sizes of differences (e.g., a thermometer) is an example of a(n) _______ level of measurement.

Soccer players wearing different uniforms are an example of a(n) _______ level of measurement.

_________ assesses the question, "Does the test adequately measure what it purports to measure?"