Your search
Results 3 resources
-
The TOMI consists of two 25-item, two-alternative, forced-choice scales - General Knowledge (TOMI-G) and Legal Knowledge (TOMI- L) - designed to detect malingered cognitive impairment in CST evaluations. The TOMI was derived and validated with a university sample (N = 242), with a cut score of < 21 providing maximum classification accuracy of hon est and dishonest respondents. Subsequently, the TOMI was administered to forensic inpatient residents (N = 30) and was compared to existing, well- established tests of malingering (the Rey-FIT and the TOMM). Results indi cated strong correlations and predictive agreement for both scales, and dis tinction between honest and probable dishonest respondents for the TOMI-L. A third study provided additional validation for the TOMI in distinguishing honest from dishonest student respondents (N = 120) and examined the ef fects of motivation on response style. For dishonest responders, those in the high motivation group scored significantly lower than those in the low moti vation group, further betraying their dishonesty. The utility of the TOMI as a useful, novel tool for forensic practitioners is discussed. Copyright 2008 American Journal of Forensic Psychology.
-
The authors investigate whether the choice of college textbook affects students' comprehension of the material. Forty-eight students from educational psychology courses were randomly assigned to one of two conditions: (1) unfamiliar passages drawn from the textbook used in the course, or (2) comparable passages selected from a competitor textbook. Students read three passages and completed comprehension tests and an opinion survey. No significant differences were found. Implications for textbook selection practices are presented in the discussion section. © 2008, Copyright Taylor & Francis Group, LLC.
-
Pigeons responded in a successive-encounters procedure that consisted of a search period, a choice period, and a handling period. The search period was either a fixed-interval or a mixed-interval schedule presented on the center key of a three-key chamber. Upon completion of the search period, the center key was turned off and the two side keys were lit. A pigeon could either accept a delay followed by food (by pecking the right key) or reject this option and return to the search period (by pecking the left key). During the choice period, a red right key represented the long alternative (a long handling delay followed by food), and a green right key represented the short alternative (a short handling delay followed by food). The experiment consisted of a series of comparisons for which optimal diet theory predicted no changes in preference for the long alternative (because the overall rates of reinforcement were unchanged), whereas the hyperbolic-decay model predicted changes in preference (because the delays to the next possible reinforcer were varied). In all comparisons, the results supported the predictions of the hyperbolic-decay model, which states that the value of a reinforcer is inversely related to the delay between a choice response and reinforcer delivery.