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141.
Normalization of irrelevant dimensions in stimulus comparisons 总被引:1,自引:0,他引:1
P Dixon M A Just 《Journal of experimental psychology. Human perception and performance》1978,4(1):36-46
When subjects compared two multidimensional stimuli with respect to a single (relevant) dimension in a same-different task, variation in the irrelevant dimension systematically affected reaction times. For same trials, reaction times increased monotonically with the amount of disparity between the stimuli on the irrelevant dimension. The dimensions were heights and widths of ellipses or hues and tints of color patches. The results were interpreted in terms of a normalization process that internally transforms the irrelevant dimensions of the two stimuli until they are equal. The amount of normalization, and hence same reaction time, increased with increasing disparity on the irrelevant dimension. These results suggest that in order to decide that two objects are equivalent in some criterial respect, it is often necessary to normalize irrelevant disparities. 相似文献
142.
Marcel Adam Just Richard Lee Suslick Steve Michaels Linda Shockey 《Attention, perception & psychophysics》1978,24(4):327-336
These studies examined the perceptual role of various components of naturally produced stop consonants (/b, d, g, p, t, k/) in CV syllables. In the first experiment, the context-sensitive voiced formant transitions were removed with a computer-splicing technique. Identification accuracy was 84% when the consonant was presented with the same vowel as had been used to produce it. Performance fell to 66% when the consonant was juxtaposed with a different vowel. The second experiment not only deleted the voiced formant transition, but also replaced the aspiration with silence. Here, identification accuracy dropped substantially, especially for voiceless stops, which had contained devoiced formant transitions in the replaced interval. The pattern of errors suggested that listeners try to extract the missing locus of the consonant from the vowel transition, and in the absence of a vowel transition, they try to extrapolate it from the second formant of the steady-state vowel. 相似文献
143.
This paper examines various background factors plus success and work-related atttudes of 324 women as aggregated into one of three groups: those women working in male-dominated jobs, those in female-dominated jobs, and those in relatively sex-ratio balanced jobs. Overall results show that women holding male-dominated jobs are more likely to be older, better educated, have fathers with higher educational levels, and are more likely to be childless as compared to women in female-dominated jobs. Holding age and education constant, women in male-dominated jobs usually rated definitions of success as more important to their feelings of well-being than did women in female-dominated jobs. With these same constants, there were few differences in work attitudes among the three groups, but contrary to expectations, women in female-dominated jobs rated the importance of their work higher than did women in male-dominated jobs. The variables best predicting whether a woman held a male-dominated job were college attainment, problems related to sex discrimination, the age of the participant, her feelings toward achieving a very high salary, her feelings of the importance of her work, and her feelings about becoming an authority in her job. 相似文献
144.
This article evaluates the efficacy of the Oregon model of Parent Management Training (PMTO) in the stepfamily context. Sixty-seven of 110 participants in the Marriage and Parenting in Stepfamilies (MAPS) program received a PMTO-based intervention. Participants in the randomly assigned experimental group displayed a large effect in benefits to effective parenting practices with resultant decreases in child noncompliance and in home and school problem behaviors. MAPS findings replicate and extend those of the Oregon Divorce Study with single mothers while employing a similar multiple-method, multiple-measure randomized design, with Intent-to-Treat and structural equation modeling analyses. We discuss direct and indirect effects on distal outcomes and the generalizability of PMTO to differing family contexts. 相似文献
145.
This research examined how a contextualist approach to personality can reveal social interactional patterns that are obscured by gender comparisons of overall behavior rates. For some behaviors (verbal aggression), girls and boys differed both in their responses to social events and in how often they encountered them, yet they did not differ in overall behavior rates. For other behaviors (prosocial), gender differences in overall rates were observed, yet girls and boys differed more in their social environments than in their responses to events. The results question the assumption that meaningful personality differences must be manifested in overall act trends and illustrate how gender differences in personality can be conceptualized as patterns of social adaptation that are complex and context specific. 相似文献
146.
One can interpret the No Probabilities for Acts-Principle, namely that any adequate quantitative decision model must in no
way contain subjective probabilities for actions in two ways: it can either refer to actions that are performable now and
extend into the future or it can refer to actions that are not performable now, but will be in the future. In this paper,
I will show that the former is the better interpretation of the principle. 相似文献
147.
This paper reports on an experimental test of coercion theory early onset model of delinquency. Results are from the Oregon Divorce Study-II, a randomized preventive intervention trial with a sample of 238 recently separated mothers and their sons in early elementary school. The objective was to experimentally manipulate parenting variables hypothesized to influence development of delinquent behaviors. Multiple-method assessment spanned 36 months. Because the intervention focused on parent training, we expected that any intervention effects on changes in child outcomes would be mediated by hypothesized intervening mechanisms. Linear growth models showed significantly greater reduction in boys' delinquency and deviant peer affiliation in the experimental group relative to the controls. Subsequent models using no method overlap in constructs demonstrated that the intervention effect on delinquency operated through growth in parenting and reduction in deviant peer affiliation. 相似文献
148.
Using a specially designed questionnaire, we examined the relationship between parental responses to systemic questions, therapists'views based upon these responses and parental reports of dysfunction in a member of the family. The questionnaire was completed by parents of a randomly selected population sample of adolescents and by experienced family therapists. Therapists made inferences that were predictable, coherent and reliable. They gave most salience to the concept of'enmeshment'and least to'hostile-discordant'functioning. Some enmeshed answers were favoured by substantial proportions of parents, suggesting that they may reflect normal variants of family functioning. However no associations between total enmeshment scores and reported mental health problems were found. Hostile-discordant functioning, as assessed in this study, was rare in the general population sample, but was associated with reported problems. 相似文献
149.
150.
Terry R Barclay Charles H Hinkin Steven A Castellon Karen I Mason Matthew J Reinhard Sarah D Marion Andrew J Levine Ramani S Durvasula 《Health psychology》2007,26(1):40-49
OBJECTIVE: Although most agree that poor adherence to antiretrovirals is a common problem, relatively few factors have been shown to consistently predict treatment failure. In this study, a theoretical framework encompassing demographic characteristics, health beliefs/attitudes, treatment self-efficacy, and neurocognitive status was examined in relationship to highly active antiretroviral therapy adherence. DESIGN: Prospective, cross-sectional observational design. MAIN OUTCOME MEASURES: Neuropsychological test performance, health beliefs and attitudes, and medication adherence tracked over a 1-month period using electronic monitoring technology (Medication Event Monitoring System caps). RESULTS: The rate of poor adherence was twice as high among younger participants than with older participants (68% and 33%, respectively). Results of binary logistic regression revealed that low self-efficacy and lack of perceived treatment utility predicted poor adherence among younger individuals, whereas decreased levels of neurocognitive functioning remained the sole predictor of poor adherence among older participants. CONCLUSION: These data support components of the health beliefs model in predicting medication adherence among younger HIV-positive individuals. However, risk of adherence failure in those ages 50 years and older appears most related to neurocognitive status. 相似文献