In Order to Evaluate a Graduate Program in Psychology, a Decision

question 10

Short Answer

In order to evaluate a graduate program in psychology, a decision is made to compare the scores of the recent graduates on the national licensure exam to scores nationally. The internal consistency reliability of the test = .84. The program therefore follows up with their students and finds 24 students who have taken the exam in its most recent form. The scores of the students in the program are as follows:
Given information:
Mean = 144; Median = 142; Mode = 142; Range = 50
-Use the national mean of 134 and national standard deviation of 19.0. If an individual received a raw score of 142, what is his or her standard score (publisher score) on the national test if the mean and standard deviation of the publisher score was 150 and 20 respectively?

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Definitions:

Internal Validity

The extent to which a research study can demonstrate a causal relationship between variables, free from the influence of external factors.

External Validity

External validity refers to the extent to which the results of a study can be generalized or extended to other situations, people, settings, and measures.

Experimenter Effects

Effects produced or influenced by clues to the hypotheses under examination, inadvertently communicated by the experimenter.

Laboratory Experiments

Controlled tests or investigations conducted in a lab setting where variables can be isolated and manipulated to study their effects.