Purchase Solution

Compare and Contrast Validity and Reliability

Not what you're looking for?

Ask Custom Question

Can you help me understand the importance of reliability and validity in psychological assessment and compare and contrast the difference between validity and reliability in standardized testing? Please also give me an example of internal validity, external validity, and reliability. Also, why are they both important in standardized assessment?

Purchase this Solution

Solution Summary

Explains the difference between validity and reliability in research design, giving examples of each.

Solution Preview

Reliability relates to the consistency of a test - specifically, are scores or results consistent across the test itself (for a given individual) and across testing instances (again, for a given individual). Of course, if you're using a standardized test, it's important that it gives you consistent results - if you took an IQ test and got a score of 110 and took it again and got a score of 90, you wouldn't have much faith in the fact that the test tells you anything about how smart you are.

Validity relates to ...

Purchase this Solution

Free BrainMass Quizzes
Controversies in Developmental Psychology

This quiz addresses controversies in developmental psychology.

Erik Erikson's Psychosocial Stages

Erik Erikson researched eight stages of psychosocial development beginning at birth and ending at death. This quiz challenges your knowledge of each stage, the corresponding age range, and the conflicts present during each stage.

V Axis Diagnostic Tool

It's important for all therapists to know what the V Axis Diagnostic tool is and how to use it. This quiz should be taken by learners who are not familiar with the V Axis Diagnostic Tool or who need to refresh their knowledge.

Concepts in Personality Psychology

This quiz will test student's understanding of concepts relating to personality psychology.

Childhood Disorders (Axis 1)

This quiz is designed to test one's knowledge on childhood Principle Disorders found in the DSM-IV (1994). This is a good quiz for those who wish to pursue a career in child assessment or child development. Good luck.