PSYB01H3 Chapter Notes - Chapter 5: Construct Validity, Face Validity
Document Summary
Reliability: the degree to which a measure is consistent. True score: an individual"s actual score on a variable being measured, as opposed to the score the individual obtained on the measure itself. Measurement error: the degree to which a measurement deviates from the true score value. Pearson product-moment correlation coefficient: a type of correlation coefficient used with interval and ratio scale data. In addition to providing information on the strength of relationship between two variables, the pearson product-moment correlation coefficient indicates the direction (positive or negative) of the relationship. Test-retest reliability: a reliability coefficient determined by the correlation between scores on a measure given at one time with scores on the same measure given at a later time. Internal consistency reliability: reliability assessed with data collected at one point in time with multiple measures of a psychological construct. A measure is reliable when the multiple measures provide similar results.
