PSYC 3090 Chapter Notes - Chapter 3: Alfred Binet, Multimodal Distribution, Level Of Measurement
10 May 2017
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Measurement: act of assigning numbers or symbols to characteristics of things according to rules. Scale: set of numbers whose properties model empirical properties of the objects to which the numbers are assigned. Error: refers to the collective influence of all the factors on a test score or measurement beyond those specifically measured by the test or measurement. Nominal scales: system of measurement in which all things measured are classified or categorized base on one or more distinguishing characteristics and placed into mutually exclusive and exhaustive categories. Alfred binet believed his intelligence test was ordinal. Interval scales: a system of measurement in which all things measured can be rank-ordered into equal intervals, where every unit on the scale is equal to every other and there is no absolute zero point. Distribution: set of test cores arrayed for recording or study. Raw score: straightforward, unmodified accounting of performance that is usually numerical.
