PSY 302 Lecture Notes - Naturalistic Observation, Prenatal Development, Test Validity

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19 Mar 2013
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Class notes lecture 2 chapter 1 continued & chapter 2. An approach to testing beliefs that involves: (i. e. , an educated guess) Must be both reliable and valid to. Some measure may be reliable one time but not other. Extent to which a test accurately reflects what it is intended to measure. The degree to which independent measurements of a given behavior are. Reliability consistent different raters who witness the same behavior. Quality on two or more occasions quantity. Interrater reliability: the amount of agreement in the observations of. Test-retest reliability: attained when measures of performance are similar. Refers to the degree to which a test or experiment measures what it is intended to. Internal validity is the degree to which effects observed within. Researchers strive for two types of validity: experiments can be attributed to the variables that the researcher intentionally manipulated. -> being able to say that the outcome is because of the manipulation that i did.

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