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The scale is then obtained as a left-adjusted column marginal average of this standard score matrix (Thurstone, 1927b). The underlying rationale for the method and basis for the measurement of the "psychological scale separation between any two stimuli" derives from Thurstone's Law of comparative judgment (Thurstone, 1928).
A Thurstonian model is a stochastic transitivity model with latent variables for describing the mapping of some continuous scale onto discrete, possibly ordered categories of response. In the model, each of these categories of response corresponds to a latent variable whose value is drawn from a normal distribution , independently of the other ...
The Thurstone Word Fluency Test, also known as the Chicago Word Fluency Test (CWFT), [1] was developed by Louis Thurstone in 1938. [2] This test became the first word fluency psychometrically measured test available to patients with brain damage. [3] The test is a used to measure an individual's symbolic verbal fluency.
This is the defining feature of the class of models, as is elaborated upon in the following section. The Rasch model for dichotomous data has a close conceptual relationship to the law of comparative judgment (LCJ), a model formulated and used extensively by L. L. Thurstone, [12] [13] and therefore also to the Thurstone scale. [14]
Louis Leon Thurstone (May 29, 1887 – September 29, 1955) [1] was an American pioneer in the fields of psychometrics and psychophysics. He conceived the approach to measurement known as the law of comparative judgment , and is well known for his contributions to factor analysis .
A personality test is a method of assessing human personality constructs.Most personality assessment instruments (despite being loosely referred to as "personality tests") are in fact introspective (i.e., subjective) self-report questionnaire (Q-data, in terms of LOTS data) measures or reports from life records (L-data) such as rating scales.
A 2004 conference called Factor Analysis at 100 produced a book with two chapters that document the historical importance Thurstone's contributions to factor analysis. [10] [11] Thurstone's approach to factor analysis remains an important method in psychological research and it has since been used in numerous other fields of study. [12]
The Thurstone Personality Schedule was one of the first personality tests. [1] It was published by Louis Leon Thurstone and Thelma Gwinn Thurstone in 1930. [2] It underwent many revisions and adaptions. 6 year test-retest reliability was 0.53 in one study. [3] In 1952 around 200 firms used the test for personnel screening. [4]