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151.
Systems factorial technology (SFT) is a theory-driven set of methodologies oriented toward identification of basic mechanisms, such as parallel versus serial processing, of perception and cognition. Studies employing SFT in visual search with small display sizes have repeatedly shown decisive evidence for parallel processing. The first strong evidence for serial processing was recently found in short-term memory search, using target-distractor (T-D) similarity as a key experimental variable (Townsend & Fifi?, 2004). One of the major goals of the present study was to employ T-D similarity in visual search to learn whether this mode of manipulating processing speed would affect the parallel versus serial issue in that domain. The result was a surprising and regular departure from ordinary parallel or serial processing. The most plausible account at present relies on the notion of positively interacting parallel channels. 相似文献
152.
153.
A Systematic Review of the Relationship between High School Dropout and Substance Use 总被引:2,自引:0,他引:2
A systematic review of peer-reviewed, empirical literature published between 1990 and 2006 was undertaken to determine whether
existing research could provide evidence, and a deeper understanding of the relationship between dropping out of high school
and the use of substances such as tobacco, alcohol, cannabis/marijuana and other illicit drugs. Forty-six articles were reviewed.
The review describes the heterogeneity of theoretical frameworks employed, as well as the limited ability of any one to adequately
explain the relationship between high school dropout and substance use. A refinement of the many confounding and mediating
variables into coherent conceptual categories would aid more robust theory building and theory integration. In spite of differences
in dropout definitions and diverse measures of substance use across studies, the main findings point to a largely consistent
relationship between dropping out of high school and substance use. However, socially disadvantaged and poor persons, dropouts,
and drug users are over-represented in some of the loss to follow-up groups in longitudinal studies surveyed. More rigorous
mechanisms to retain participants in longitudinal studies should be employed. Suggestions for future research include comparisons
between urban and rural populations, employing qualitative research methods, and research in developing countries, which have
the least favourable school outcomes and a dearth of research on high school dropout.
相似文献
Loraine TownsendEmail: |
154.
STRUCTURAL MODELS OF THE RELATIONS OF ASSAULT SEVERITY, SOCIAL SUPPORT, AVOIDANCE COPING, SELF-BLAME, AND PTSD AMONG SEXUAL ASSAULT SURVIVORS 总被引:1,自引:1,他引:0
Sarah E. Ullman Stephanie M. Townsend Henrietta H. Filipas Laura L. Starzynski 《Psychology of women quarterly》2007,31(1):23-37
A number of studies have identified which survivors of sexual assault are more likely to develop symptoms of posttraumatic stress disorder (PTSD). Most correlates that have been identified have been at the individual level. Insufficient attention has been given to whether survivors' social interactions impact their individual responses to assault and subsequent levels of psychological symptomatology. In this study, a large, diverse sample of community-residing women ( N = 636) was surveyed. Structural equation modeling was used to examine the relationships between assault severity, global support, negative social reactions, avoidance coping, self-blame, traumatic life experiences, and PTSD symptoms. The results suggest that negative social reactions and avoidance coping are the strongest correlates of PTSD symptoms and that the association typically observed between victim self-blame and PTSD symptoms may be partially due to the effect of negative social reactions from others. These reactions may contribute to both self-blame and PTSD. Implications for future research and clinical practice are discussed. 相似文献
155.
The authors present a theory of stochastic interactive parallel processing with special emphasis on channel interactions and their relation to system capacity. The approach is based both on linear systems theory augmented with stochastic elements and decisional operators and on a metatheory of parallel channels' dependencies that incorporates standard independent and coactive parallel models as special cases. The metatheory is applied to OR and AND experimental paradigms, and the authors establish new theorems relating response time performance in these designs to earlier and novel issues. One notable outcome is the remarkable processing efficiency associated with linear parallel-channel systems that include mutually positive interactions. The results may offer insight into perceptual and cognitive configural-holistic processing systems. 相似文献
156.
Wenger MJ Townsend JT 《Journal of experimental psychology. Human perception and performance》2006,32(3):755-779
The authors present a comprehensive consideration of the process characteristics of visual search in contexts that vary in their meaningfulness. The authors frame hypotheses regarding process architecture, stopping rule, capacity, and channel independence, using analytic results and a rigorously specified dynamic system to characterize a set of alternative hypotheses that vary along all of these dimensions. Results of the tests of these hypotheses suggest that process architecture and the stopping rule do not distinguish the processing of meaningful and meaningless forms. The major distinction between configural and nonconfigural processing was with regard to processing capacity, potentially implicating channel interdependencies. All of these conclusions hold for both faces and words. 相似文献
157.
The Influence of Cultural and Racial Identification on the Psychosocial Adjustment of Inner-City African American Children in School 总被引:2,自引:0,他引:2
The purpose of this study was to examine the relationship and combined influence of racial identity and Africentric values on African American children's psychosocial adjustment. Participants were 104 (53 males, 51 females) African American fourth-grade students attending an inner-city public school in a northeastern city. Child and teacher ratings were used to assess the relationship between racial identity, Africentric values, and several indices of child psychosocial adjustment, including child behavior control, school interest, and teacher perceptions of child strengths and problems in the classroom. Child self-esteem and the effects of gender and cohort were used as covariates in several analyses in the study. Overall, findings from the study supported the usefulness of combining racial identity and Africentric values into a single model of ethnic identification for African American children. Implications for risk prevention and enhancement of psychosocial functioning among African American children are discussed. 相似文献
158.
159.
This study examined the effects of gender on how people present their academic achievements when interacting with vulnerable male peers. Participants were 86 college students (40 males, 46 females) drawn from a population that was 7% African American, 10% Asian American, 6% Latino/a, 6% non-U.S. citizens, and 71% Euro-Americans. They were induced to predict their grade point average (GPA) to a male confederate who presented himself as (a) having earned either a low GPA or an average GPA, and (b) concerned or unconcerned about his academic performance. Both men's and women's GPA predictions were higher when interacting with the concerned partner, and men's predictions were even higher when interacting with the concerned, low-GPA partner. For male participants, there were significant positive correlations between predicted GPA and perceived similarity to the partner and between predicted GPA and interest in establishing a relationship with the partner, especially when interacting with the worried partner. These and other findings are discussed in the context of previous findings and related theory. 相似文献
160.
Collapsing DSM-III schizotypal and borderline groups to form a borderline population is unwarranted when the results are then related to borderline personality organization. In a comparison of overlapping scoring systems for inferring defensive operations, Lerner, Albert, and Walsh intertwine fact and theory extravagantly and are not justified by their chosen populations nor their assumptions about the theories involved. 相似文献