Chapter 9- interpreting test results

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Chapter Nine Study Notes
Why is it wise to be cautious when interpreting test results?
-Psychological test is a standardized measure of a sample of a person’s behavior.
- They measure individual differences that exist among people in abilities, interests and aspects of
personality.
-Test scores are interpreted by consulting test norms to find out what represents a high and low score.
What are the two main categories of psychological tests?
-Mental ability test and personality test.
What makes a test standardized?
-Standardization refers to the uniform procedures used in the administration and scoring of a test.
-What makes a test standardized is when all subjects get the same instructions, questions, and same time
limit, so their scores can be compared meaningfully.
What are test norms and percentile scores?
-Test norms provide information about where a score on a psychological test ranks in relation to other
scores on that test.
-Test norms show whether you scored average, or above and below the average test score. It helps you
overall understand what your test score means.
-Percentile scores indicate the percentage of people who score at or below the score one has obtained.
What is reliability, and how can it be measured?
-Reliability refers to the measurement consistency of a test (or of other kinds of measurement techniques).
-Test-retest reliability is estimated by comparing subjects’ scores on two administrations of a test.
Reliability estimates should yield fairly high positive correlations.
What are the three types of test validity?
-Validity refers to the ability of a test to measure what it was designed to measure.
-3 types are content validity, criterion-related validity, and construct validity.
-Content validity: The content of a test is representative of the area it’s supposed to cover.
(Example) an exam that has questions that was covered in class, and the assigned readings.
-Criterion-related validity: When scores on a test are used to measure performance.
-Construct validity: When a test is used to measure a hypothetical construct.
When and how did intelligence testing begin?
-The first intelligence tests were derived by Sir Francis Galton, who sought to show that intelligence in
inherited.
-It was invented over a hundred years ago.
What were Binet’s contributions to the progress of intelligence testing?
-Modern intelligence testing began with the work of Alfred Binet, a French psychologist who published
the first useful intelligence testing. Binet’s scale measured a child’s mental age.
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Document Summary

Psychological test is a standardized measure of a sample of a person"s behavior. They measure individual differences that exist among people in abilities, interests and aspects of personality. Test scores are interpreted by consulting test norms to find out what represents a high and low score. Standardization refers to the uniform procedures used in the administration and scoring of a test. What makes a test standardized is when all subjects get the same instructions, questions, and same time limit, so their scores can be compared meaningfully. Test norms provide information about where a score on a psychological test ranks in relation to other scores on that test. Test norms show whether you scored average, or above and below the average test score. It helps you overall understand what your test score means. Percentile scores indicate the percentage of people who score at or below the score one has obtained.

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