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31.
Carroll and Chang have claimed that CANDECOMP applied to symmetric matrices yields equivalent coordinate matrices, as needed for INDSCAL. Although this claim has appeared to be valid for all practical purposes, it has gone without a rigorous mathematical footing. The purpose of the present paper is to clarify CANDECOMP in this respect. It is shown that equivalent coordinate matrices are not granted at global minima when the symmetric matrices are not Gramian, or when these matrices are Gramian but the solution not globally optimal.Part of this research has been supported by The Netherlands Organization for Scientific Research (NWO), PSYCHON-grant (560-267-011). 相似文献
32.
Raymond T. Garza Gloria J. Romero Barbara Goffigon Cox Manuel Ramirez 《Journal of applied social psychology》1982,12(3):237-253
The study examined the interactive effects of degree of biculturalism and locus of control on leader behavior in supportive and nonsupportive ethnically mixed small groups. Subjects were 36 male Chicano college students who participated in a small group discussion composed of four members: a naive subject who invariably served as group leader, and three confederates representing distinct ethnic groups (Anglo, Black, and Chicano). Behavioral observations revealed several interesting interactions involving group support. High biculturals, in comparison to low biculturals, adopted a more active leader role in nonsupportive than in supportive groups, asking for more opinions and evaluations, and making more clarification statements. Furthermore, while low bicultural externals and high bicultural internals tended to be more interpersonally assertive and to make more clarification statements under supportive conditions, it was low bicultural internals and high bicultural externals who exhibited the most active leader roles in nonsupportive groups. Additional findings revealed that statements made by the Anglo confederate were clarified more often in the supportive condition, while statements made by either the Black or the Chicano confederate were clarified more often in the nonsupportive condition. The results are discussed in relation to previous literature and the need to develop a more responsive social psychology of interethnic dynamics. 相似文献
33.
It was found that illiterate adults could neither delete nor add a phone at the beginning of a non-word; but these tasks were rather easily performed by people with similar environment and childhood experiences, who learned to read rudimentarily as adults. Awareness of speech as a sequence of phones is thus not attained spontaneously in the course of general cognitive growth, but demands some specific training, which, for most persons, is probably provided by learning to read in the alphabetic system. 相似文献
34.
It has previously been hypothesized that individuals with elevated attention deficit hyperactivity disorder (ADHD) symptoms are at greater risk of bullying perpetration and victimization. Using autoregressive latent trajectory models with structured residuals (ALT‐SR) and four waves (ages 11, 13, 15, and 17) of longitudinal data from the normative z‐proso study (n = 1526, 52% male), we evaluated the developmental relations between ADHD and bullying using both self‐ and teacher‐reported ADHD symptom data. Analyses suggested that ADHD symptoms primarily increase the risk of bullying perpetration, with a within‐person effect of ADHD symptoms on bullying perpetration symptoms identified across ages 13–15 (β = .13) and ages 15–17 (β = .19) based on self‐reported ADHD symptoms and a similar effect identified across ages 11–13 (β = .24) and 13–15 (β = .29) based on teacher‐reported inattention symptoms. There were also some indications of reciprocal effects and effects involving victimization that merit further exploration in future research. Results imply that the content of bullying intervention and prevention programs should take account of ADHD symptoms to ensure that those with elevated symptoms can benefit as much as their typically developing peers. This will involve addressing bullying perpetration that may reflect impulsive/reactive aggression and impaired social skills rather than instrumental aggression. Further, programs should go beyond classical curriculum/classroom‐based delivery to ensure that individuals with elevated ADHD symptoms can be successfully engaged. 相似文献
35.
Abós Ángel Sevil-Serrano Javier Montero-Marín Jesus Julián José Antonio García-González Luis 《Current psychology (New Brunswick, N.J.)》2021,40(8):3809-3826
Current Psychology - Based on Farber’s burnout proposal, the first aim of this study was to examine the psychometric properties of the short version of the Burnout Clinical Subtype... 相似文献
36.
Trindade Inês A. Keefer Laurie Portela Francisco Ferreira Cláudia Pinto-Gouveia José 《Current psychology (New Brunswick, N.J.)》2021,40(7):3459-3466
Current Psychology - Research has questioned whether it is feasible to assess psychosocial variables through web-based recruitment methods. Previous literature on IBD focused exclusively on testing... 相似文献
37.
Ángel Rosa-Alcázar María Dolores García-Hernández José Luis Parada-Navas Pablo J. Olivares-Olivares Sergio Martínez-Murillo Ana I. Rosa-Alcázar 《International Journal of Clinical and Health Psychology》2021,21(2):100223
Background/ObjectiveThe main aim of this study was to compare coping strategies in obsessive-compulsive disorder (OCD) patients and a healthy control group during COVID-19 lockdown and to analyze the relationship with some variables which may influence results (depression, anxiety, comorbidity, subtype of obsession-compulsion). Method: There were 237 participants, 122 OCD and 115 healthy controls, aged 17-61 years old (M = 33.48, SD = 11.13). Results: Groups showed differences in the use of some adaptive strategies (positive reinterpretation, acceptance, humor) and maladaptive (denial, self-blame). Within obsessive-compulsive group, comorbidity affected the greater use of inappropriate strategies (denial, substance abuse and self-blame) while type of obsession-compulsion did not influence use. Anxiety and depression levels were related to the use of less adaptive strategies. Conclusions: These findings strengthen the need for training in the use of effective and adaptive coping strategies, making it necessary to improve clinical follow-up of these patients. It is relevant to be in contact with healthcare professionals, review medication and observe the anxiety and depression levels. 相似文献
38.
Philosophical Studies - We sometimes fail unwittingly to do things that we ought to do. And we are, from time to time, culpable for these unwitting omissions. We provide an outline of a theory of... 相似文献
39.
Fonseca Wald Eric L. A. Hendriksen Jos G. M. Drenthen Gerald S. Kuijk Sander M. J. V. Aldenkamp Albert P. Vles Johan S. H. Vermeulen R. Jeroen Debeij van Hall Mariette H. J. A. Klinkenberg Sylvia 《Neuropsychology review》2020,30(1):164-165
Neuropsychology Review - Due to an error during the editorial phase, a correction regarding Fig. 2 is added to the original article: “Towards a Better Understanding of Cognitive... 相似文献
40.
Social Psychology of Education - In Chile, a vast and persistent gender gap in math performance at university admission has negative consequences for women’s opportunities. International... 相似文献