By Frederic M. Lord
The most very important books within the heritage of psychometrics has been almost unavailable to students and scholars for many years. a niche within the files of contemporary try out conception is now being crammed by means of the discharge in paperback for the 1st time of the vintage textual content, Statistical Theories of psychological try out ratings, via the overdue and commemorated statisticians and psychometricians, Frederic M. Lord and Melvin R. Novick. No unmarried e-book because 1968 while Lord & Novick first seemed has had a related influence at the perform of checking out and overview. info Age Publishing is proud to make this vintage textual content on hand to a brand new iteration of students and researchers.
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Theoretical constructs, whether they are stated in verbal or in verbal-mathematical form, are abstractions from aspects of nature. The syntactic definition of these constructs permits the development of a more or less precisely formulated logical system. This logical system permits the deduction of the properties of the constructs of the system. These constructs may then be interpreted semantically to explain past events or predict future events in the behavioral domain. In psychology, according to Torgerson (1958): The concepts of theoretical interest tend to lack empirical meaning, whereas the corresponding concepts with precise empirical meaning often lack theoretical import.
In Fig. 1 we have distinguished between semantic definitions and interpretations (indicated by ----+) and syntactic definitions and derivations (indicated by .... ~). 4 The Place of Measurement in Psychology The constructs of psychological theory are expressed in words. So used, these words are much more explicitly and restrictively defined, syntactically and semantically, than they are when used in their larger meanings in everyday speech or in prescientific theory. Nevertheless psychological constructs, since they are expressed in words, tend to convey broader connotative meanings.
Second edition, 1962. GHISELLI, E. , Theory of psychological measurement. Chapters 1 and 2. New York: McGraw-Hill, 1964. , H. O. HARTLEY, and P. G. HOEL, Recommended standards for statistical symbols and notations. American Statistician, 1965, 19, 12-14. , An introduction to genetic statistics. New York: Wiley, 1957. LUCE, R. , and J. W. TUKEY, Simultaneous conjoint measurement: a new type of fundamental measurement. Journal of Mathematical Psychology, 1964, 1, 1-27. , The mystery of the missing corpus.