Chapter 2.3 Flashcards
high/low test-retest reliability
A graph can show measurement 1 on the y-axis and measurement 2 on the x-axis. These two should give the same results therefore a straight line. If this is true the test has a high test-retest reliability. If this is not true and two measurements don’t match the test-retest reliability is low.
What is equivalent forms reliability?
Equivalent forms reliability is the extent to which measurements on two or more forms of a test are consistent.
What is internal consistency reliability?
Internal consistency reliability is a test that shows if the questions in a test are of the same level.
When is a test reasonable reliable?
A test is reasonable reliable when the reliability scores between 0.70 and 0.80 or higher.
What is the generalizability theory?
The generalizability theory is a sophisticated approach to the question of reliability that simultaneously considers all types of error in reliability estimates.
Which three common designs do IO-psychologists use to gather validity evidence?
- criterion-related validity
- content related validity
- construct related validity
What is a predictor
A predictor is a test chosen or developed to asses abilities identified as important for successful job performance.
What is a criterion?
a criterion is an outcome variable that describes important aspects or demands of the job.
What is criterion-related validity?
Criterion related validity is a validity approach that is demonstrated by correlating a test score with a performance measure.
How to calculate the validity coefficient?
you can calculate the validity coefficient by correlating the test scores with the performance data. This is therefore the correlation coefficient between the test scores and a performance measure.
What is a predictive validity design?
A predictive validity design is a criterion related validity design in which there is a time lag between collection of the test data and the criterion data.
What is the concurrent validity design?
The concurrent validity design has no time delay between gathering the test scores and performance data. This has disadvantages as only people who scored good on the test will get hired, all other don’t have a chance and the company won’t know if they would do better.
What is content related validity?
a content related validity design is a design that demonstrates that the content of the selection procedure represent an adequate sample of important work behaviors and activities. So choices can be made by testing applicants on important work behaviors and activities.
What is construct related validity?
Construct validity is an approach in which investigators gather evidence to support decisions or inferences about psychological constructs.
What is a construct?
A construct is a psychological concept or characteristic that a predictor is intended to measure. Examples are intelligence, personality and leadership.
