Screening batteries of standard neuropsychological tests were administered to 2 different samples
(
N
s = 90 and 167)
of male prison inmates. Scores on the revised Psychopathy Checklist were used to ...divide inmates in each sample into high, moderate, and low psychopathy groups. There were no group differences in test performance in either of the samples, even when the effects of self-reported psychopathology and substance abuse were taken into account. The overall prevalence of both test-specific and global neuropsychological impairment was low and did not vary significantly across the 3 groups. The results provide no support for traditional brain-damage explanations of psychopathy.
Automatic differentiation of quadrature Menshikova, Marina; Forth, Shaun A.
Optimization methods & software,
04/2012, Letnik:
27, Številka:
2
Journal Article
Recenzirano
We analyse the application of automatic differentiation (AD) to the quadrature (numerical integration) of a function integrand to determine the sensitivities of the integral to variations in the ...limits of integration. We derive an expression for the truncation errors of such AD-derived sensitivities and relate them to the truncation error of the original, and a closely related, function quadrature. Our results hold provided the integrand is one degree higher continuously differentiable than that sufficient for convergence of its quadrature. Numerical results validate our analysis. However, utilization of algebraic expressions for such sensitivities, instead of directly applying AD, results in an approach that proves more efficient for the tetrachoric correlation estimation example we considered using our Matlab AD framework.
Fourteen counselors-in-training participated in an experiential cross-cultural learning during a multicultural counseling course. This article provides an example of the implementation and depicts ...the learning moments that took place during the training. Transcripts of the simulation sessions and the student feedback from the training are provided. In conclusion, possible implications are shared for future use of the training model in counselor education programs.
We review the extended Jacobian approach to automatic differentiation of a user-supplied function and highlight the Schur complement form’s forward and reverse variants. We detail a Matlab operator ...overloaded approach to construct the extended Jacobian that enables the function Jacobian to be computed using Matlab’s sparse matrix operations. Memory and runtime costs are reduced using a variant of the hoisting technique of Bischof (Issues in Parallel Automatic Differentiation, 1991). On five of the six mesh-based gradient test problems from The MINPACK2 Test Problem Collection (Averick et al, 1992) the reverse variant of our extended Jacobian technique with hoisting outperforms the sparse storage forward mode of the MAD package (Forth, ACM T. Math. Software. 32, 2006). For increasing problems size the ratio of gradient to function cpu time is seen to be bounded, if not decreasing, in line with Griewank and Walther’s (Evaluating Derivatives, SIAM, 2008) cheap gradient principle.
A selected review of the literature about short-term therapy and social skills as they may apply to depressed adolescents is presented. Two forms of group therapy are described. These are social ...skills and a traditional discussion group format. Some of the difficulties in establishing and evaluating a group therapy program are outlined.
Two forms of short-term group therapy for depressed adolescents are compared. Adolescents were assigned to either a social skills training or therapeutic support group. Treatment outcome was based on ...self-report and semistructured clinical interviews for depression, measures of self-concept, and cognitive distortions. After treatment, adolescents in the therapeutic support groups showed significantly greater reductions in clinical depression and significant increases in self-concept compared with those in the social skills training group. These group differences were no longer evident at 9-month follow-up, as adolescents in the therapeutic support groups maintained their improvement, and adolescents in the social skills training groups caught up.
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