Psych 304-Exam 02 - Study Guide

Psych 304-Exam 02 - Study Guide - PSYCHOLOGY 304 EXAM II...

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PSYCHOLOGY 304 – EXAM II STUDY GUIDE 150 points possible. Just like the previous exam, there will be 75 questions each worth 2 points each. The questions will be either multiple choice or true/false. TEST WILL FOCUS ON APPLICATION OF PRINCIPLES AS MUCH AS POSSIBLE, SO KNOW HOW TO APPLY THE MATERIAL, NOT JUST MEMORIZE. CHAPTER 05 1. Define and be able to apply the broad definition of validity. The degree to which a test actually measures what it purports to measure 2. What are the three main types of validity evidence? Construct- does the test measure what it purports to measure Criterion- does the test correlate with/predict one’s score on an external criterion (test is predictor) Content- how adequately do test items measure the construct domain 3. What prerequisites exist for validity? Reliability is necessary! (not sufficient), validation studies are necessary to justify inferences that the test is valid (one validation for each construct) 4. Define Face Validity. How does it differ from other aspects of validity? Face validity is the appearance of validity, a judgment often made from the test-taker of how well the test items appear to measure the construct 5. Define Content Validity: How is it measured? Content validity is the degree to which a test adequately represents the conceptual domain. It is often determined by expert judgment- multiple judges rate the items- CVR (essential, useful, not necessary) Face and content validity are the only ones that are logistical and not statistical 6. How do construct underrepresentation and construct-irrelevant variance relate to content validity? Underrepresentation- failure to capture important components of a construct Construct-irrelevant variance- scores are influenced by factors irrelevant to the construct 7. What is the content validity ratio and how is it calculated? 3-pt scale using a panel of judges, if item is essential, CVR=1, if not essential, CVR=-1 8. What is a criterion? What is Criterion-related Validity? Criterion validity is how well test scores correspond with a particular criterion. The criterion is the standard against which the test is compared (must be reliable, valid/relevant, and uncontaminated) 9. Name and define the three subtypes of criterion related validity. Be able to give examples. 1. Predictive validity- the accuracy with which test scores predict a criterion obtained at a later time (SAT predicts college GPA) 2. Concurrent validity- the degree to which the test scores are related to the criterion and can be measured at the same time (job samples) 3. Postdictive validity- the accuracy with which a test score predicts a previously obtained criterion (test of antisocial behavior predicts past delinquent acts) 10. What is the validity coefficient? What is the meaning of a squared validity coefficient? The validity coefficient is the relationship between a test and a criterion. The squared coefficient is the
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This note was uploaded on 10/22/2011 for the course PSYCH 304 taught by Professor Staff during the Winter '08 term at BYU.

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Psych 304-Exam 02 - Study Guide - PSYCHOLOGY 304 EXAM II...

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