PSYC 200 Lecture Notes - Lecture 3: University Of Manchester, Thermometer, Face Validity
17 Sep 2015
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Measure sexual arousal using penile plethysmograph ii. iii: behavioral i. ii. iii. Variable levels reflect sequential order: levels indicate differences in quantity, but not degree of difference, examples a. rankings i. i. Is the measurement procedure stable and consistent? i. ii. Is the rse scale reliable: three tests to reliability (tii) Test-retest reliability i. i: does instrument yield consistent results in the same people across administrations? a. for rse scale, how correlated are scores at. Time 1 with scores at time 2 scores: around r= . 85 (2 week interval) . 63 (7 month interval) So individual items in the measurement instrument correlate highly: for 10 items of the rse scale, correlate = Do observers/scorers agree on measurement: (not relevant for the rse scale no. Observers : e. g. , observers count aggressive acts on playground do they agree in count for each child, our smiling example from last class.
