OLD WINE IN NEW SKINS: GROUPING WECHSLER SUBTESTS INTO NEW SCALES.

A REACTION TO THE EXTENSIVE LITERATURE ON NEW WECHSLER SUBTEST COMBINATIONS (E.G., SHORT FORMS AND FACTOR SCALES). ANY NEW WECHSLER COMPOSITE RAISES ELEMENTARY ISSUES OF RELIABILITY, VALIDITY, AND SCORE STANDARDIZATION. IT IS ARGUED THAT IN THE PAST, THESE ISSUES HAVE NOT BEEN DEALT WITH IN A SATISFACTORY MANNER. RELIABILITY AND VALIDITY FORMULAS, APPROPRIATE FOR WECHSLER COMPOSITES, ARE PRESENTED. A MODIFIED PART-WHOLE CORRELATION FORMULA IS OFFERED FOR USE IN CASES OF NONINDEPENDENT TEST ADMINISTRATION OF PART AND WHOLE. IN ORDER TO FACILITATE APPROPRIATE CLINICAL USE, CONVERSION TABLES ARE PRESENTED FOR THE TRANSFORMATION OF COMPOSITE SCORES, INCLUDING FACTOR SCORES, INTO, WECHSLER DEVIATION QUOTIENTS. (31 REF.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

OBJECTIONS TO MMPI ITEMS.

THIS STUDY WAS CONCERNED WITH OBJECTIONS MADE BY COLLEGE STUDENTS TO MMPI QUESTIONS IN 2 EXPERIMENTAL CONDITIONS. IN THE "GENERAL" CONDITION, 68 SS WERE ASKED TO TAKE THE MMPI BUT TO OMIT ALL ITEMS THAT THEY WOULD CONSIDER OBJECTIONABLE UNDER ANY CIRCUMSTANCES. IN THE "SELECTION" CONDITION, 69 SS WERE INSTRUCTED TO OMIT QUESTIONS THEY WOULD FIND OBJECTIONABLE IN A JOB-SELECTION SITUATION. THE ANALYSIS OF RESULTS WAS CONCERNED WITH INDIVIDUAL REACTIONS, WITH DIFFERENCES AND SIMILARITIES BETWEEN THE 2 CONDITIONS, WITH DETERMINING WHICH TYPES OF ITEM CONTENT ARE ASSOCIATED WITH A HIGH OR LOW PERCENTAGE OF OBJECTIONS, AND WITH THE IMPLICATIONS OF REMOVING ITEMS WITH HIGH OBJECTION RATES. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Stability of negative resistances†

Three assumptions are introduced that allow of the deduction of the stability properties of a negative-resistance device from the shape of its d.c. characteristic. Whether or not a device satisfies the three assumptions can only be ascertained by considering its physical. structure.