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21.
What makes a category seem natural or intuitive? In this paper, an unsupervised categorization task was employed to examine observer agreement concerning the categorization of nine different stimulus sets. The stimulus sets were designed to capture different intuitions about classification structure. The main empirical index of category intuitiveness was the frequency of the preferred classification, for different stimulus sets. With 169 participants, and a within participants design, with some stimulus sets the most frequent classification was produced over 50 times and with others not more than two or three times. The main empirical finding was that cluster tightness was more important in determining category intuitiveness, than cluster separation. The results were considered in relation to the following models of unsupervised categorization: DIVA, the rational model, the simplicity model, SUSTAIN, an Unsupervised version of the Generalized Context Model (UGCM), and a simple geometric model based on similarity. DIVA, the geometric approach, SUSTAIN, and the UGCM provided good, though not perfect, fits. Overall, the present work highlights several theoretical and practical issues regarding unsupervised categorization and reveals weaknesses in some of the corresponding formal models. 相似文献
22.
Although personality is shown to predict negative relationship experiences, few researchers have used a structural model of personality to study the ways that personality contributes to intimate partner aggression (IPA). This study investigates the five-factor model of personality and its associations with both the use and receipt of psychological, physical, and sexual IPA in 179 men and 301 women. Each of the five factors of personality was associated with at least one type of IPA perpetration or victimization. The dimensions of neuroticism and agreeableness were the strongest predictors of IPA particularly for women. Results are discussed in terms of why personality should be considered as a predictor for both the use and receipt of IPA, why sex differences emerged, and future research that should be conducted. 相似文献
23.
Colin Martindale Dwight Hines Linda Mitchell Edward Covello 《Personality and individual differences》1984,5(1):77-86
Results of 3 experiments examining the relationship between creativity and left-hemisphere and right-hemisphere EEG activity are reported. Creativity has been hypothesized to involve the use of primary-process cognition, and such cognition is hypothetically accompanied by activation of the right cerebral hemisphere. In light of these hypotheses, we predicted that highly-creative people should exhibit greater right-hemisphere than left-hemisphere EEG activity during creative performance and that this pattern would not be found in less-creative people. All 3 experiments supported this prediction. This difference in asymmetry was specific to creative performance. It was not present during basal recordings or during a non-creative task. 相似文献
24.
Leonard S. Mark John B. Pittenger Helen Hines Claudia Carello Robert E. Shaw James T. Todd 《Attention, perception & psychophysics》1980,27(2):117-124
Changes in the shape of a human head and the development of facial wrinkles were examined as potential sources of information about age level. In Experiment 1, subjects estimated the ages of faces that had been produced by systematically manipulating characteristic head shapes and levels of wrinkles associated with ages 15, 30, 50, and 70 years. The results indicated that observers used both sources of craniofacial change in making age estimates; but the effect of either source of change on perceived age depended upon the level of the other source of change. In Experiment 2, subjects’ ratings of the apparent conflict between levels of head shape and wrinkles further substantiated the conclusion that observers are sensitive to the coordination of products of the two sources of change. These findings suggest that the information specifying perceived age level is a complexrelationship among different types of craniofacial change. 相似文献
25.
Competition and its influence upon the adolescent is the primary concern of many recreational agencies. In the past ten years, many youth agencies have de-emphasized competition in their programs because of its negative influence upon self-esteem. There is a need to examine the relationship between competition and self-esteem so that recreational programs can be better designed to utilize competition as a positive factor. A study was undertaken to examine self-esteem in relation to competition in a basketball program. It was found that the coach's assessments of ability and intention of participation are important factors in positive self-esteem development. The social aspects of peer interaction and parent influence also contribute to positive self-esteem. These are minor elements, however, in comparison to the impact of the coach. There needs to be intensive training for coaches on how to develop positive self-esteem and how to deal with the range of participation styles. 相似文献
26.
Hines J Hertzog C Touron D 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2012,19(4):449-478
Older adults adopt memory-based response strategies during consistent practice more slowly and less completely than younger adults. In two experiments, participants either prelearned all, half, or none of the noun-pair stimuli prior to the completion of a standard noun-pair lookup task. Higher proportions of prelearning generally led to a faster and more complete strategic shift from visual scanning to memory retrieval during the lookup task, and a strong prelearning criterion for all items eliminated the age-related slowing of retrieval shift. However, the 50% prelearned condition resulted in strategy shift that was inconsistent with simple mechanistic associative learning, revealing a strategic set that was retrieval-avoidant in older adults. 相似文献
27.
Parental characteristics, ecological factors, and the academic achievement of African American male high school students were examined. One hundred fifty‐three 11th and 12th grade African American males completed the Parenting Style Index ( Steinberg, Lamborn, Darling, Mounts, & Dornbusch, 1994 ) and a demographic questionnaire. Results indicated no significant relationship between parenting styles and enrollment in honors courses. However, the results indicated that fathers’ education level and two‐parent family structures are positive predictors of grade point average (GPA), and fathers’ expectations is a negative predictor of GPA. Implications for counselor practice and research are delineated. 相似文献
28.
Ruth M. Anan Lori J. Warner Jamie E. McGillivary Ivy M. Chong Stefani J. Hines 《Behavioral Interventions》2008,23(3):165-180
Early, intensive behavioral intervention is effective in treating children with autism spectrum disorders (ASDs), but can be cost prohibitive. Expenses may be defrayed if children can benefit from parents acting as therapists. This quantitative case series examines the efficacy of the Group Intensive Family Training (GIFT) program, a 12‐week (180 h, delivered 3 h each weekday) parent‐training for preschoolers with ASDs. Parents were individually mentored in the hands‐on application of behavior analytic techniques, implementing these skills in vivo within a group of six parent–child dyads. Seventy‐two parents and children (ages 25–68 months) with ASDs participated in this study. Children's cognitive and adaptive functioning was assessed before and after the intervention program. Analyses revealed average gains of eight standard score points on the Mullen Early Learning Composite and five standard score points on the Vineland Adaptive Behavior Composite after 12 weeks of treatment. Additionally, 14% and 11% of the children moved from the ‘impaired’ to ‘non‐impaired’ range on Mullen and Vineland composite scores, respectively. This preliminary investigation suggests that GIFT's behavioral, group parent‐training can lead to significant, yet cost‐ and time‐efficient gains for children with ASDs. Results must be interpreted with caution because of the absence of a control group. Copyright © 2008 John Wiley & Sons, Ltd. 相似文献
29.
It has been said that in the entertainment industry after a certain age women have a harder time being as successful as men. Four analyses of the ages of male and female Oscar winners, Oscar nominees, Emmy winners, and Grammy winners over the past 25 years showed that in all four groups women were, on the average, younger than the men. Two interpretations of these differences are delineated. 相似文献
30.
Terence Hines 《Behavior research methods》1999,31(1):55-56
A simple demonstration of auditory top-down processing is described in which one speech embedded in several others becomes much clearer when participants read a text of the target speech at the same time as they hear it. 相似文献