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51.
Glenn E. Littlepage Judith L. Van Hein Kellye M. Cohen Lauri L. Janiec 《Journal of applied social psychology》1993,23(2):107-125
The purpose of the present study is to assess the internal consistency and construct validity of three instruments measuring the use of influence tactics. Instruments by Frost and Stahelski (1988) and Hinkin and Schriesheim (1989) had been developed to be psychometrically sound measures of the French and Raven (1959) bases of power. Kipnis and Schmidt (1982a) developed a new typology to measure organizational influence, the Profile of Organizational Influence Strategies (POIS). Four hundred seventy-nine undergraduate students completed these instruments to describe the influence tactics used by their supervisor. Results indicated that the Hinkin and Schriesheim instrument has greater internal consistency and a more precisely defined factor structure than the Frost and Stahelski instrument. The corresponding scales of the two instruments measuring the French and Raven power bases are not highly correlated, suggesting that the two instruments are not equivalent. Furthermore, the pattern of correlations between scales of the three instruments suggests that neither the French and Raven not the POIS typology fully represents the structure of influence tactics. 相似文献
52.
Rose M E Huver Rutger C M E Engels Ad A Vermulst Hein de Vries 《Health psychology》2007,26(6):762-768
OBJECTIVE: Parenting is generally regarded a determinant of adolescent behavior, whereas the reverse is seldom considered. Reported effects of anti-smoking parenting practices on adolescent smoking are inconsistent. Cross-sectional results may have been misinterpreted and child effects have been overlooked. The main goal of this study was to explain previous inconsistent effects of anti-smoking parenting practices, by examining bi-directional relations between parenting and adolescent smoking. DESIGN AND MAIN OUTCOME MEASURES: Bi-directional relations were studied using a cross-lagged model where anti-smoking house rules, communication about smoking, and adolescent smoking were assessed at three subsequent years. RESULTS: The most prominent finding was that adolescent smoking behavior was a stronger predictor of parenting than vice versa. Anti-smoking house rules decreased as a result of adolescent smoking behavior, while communication increased. The reduction in house rules was more pronounced if parents smoked, while the increase in communication was greater for non-smoking parents. Results were independent of adolescent sex. CONCLUSION: Further research is needed to establish which aspects of parenting can be effective in deterring adolescent smoking. This study emphasizes the need for caution in interpreting cross-sectional research findings relating parenting to adolescent smoking. 相似文献
53.
This article summarizes how the Office of the Surgeon General can leverage faith-based resources to fulfill its mission and
that of the Surgeon General of the United States. Such resources, personal and institutional, have been utilized historically
in health promotion and disease prevention efforts and are a valuable ally for public health, an alliance that continues under
the Obama Administration. This paper outlines the history and mission of the Office; details the recent history of federal
faith-based initiatives; and advocates an expanded alliance between the faith-based and public health sectors sensitive to
legal and professional boundaries. 相似文献
54.
Hein E Moore CM 《Journal of experimental psychology. Human perception and performance》2012,38(4):975-988
We live in a dynamic environment in which objects change location over time. To maintain stable object representations the visual system must determine how newly sampled information relates to existing object representations, the correspondence problem. Spatiotemporal information is clearly an important factor that the visual system takes into account when solving the correspondence problem, but is feature information irrelevant as some theories suggest? The Ternus display provides a context in which to investigate solutions to the correspondence problem. Two sets of three horizontally aligned disks, shifted by one position, were presented in alternation. Depending on how correspondence is resolved, these displays are perceived either as one disk "jumping" from one end of the row to the other (element motion) or as a set of three disks shifting back and forth together (group motion). We manipulated a feature (e.g., color) of the disks such that, if features were taken into account by the correspondence process, it would bias the resolution of correspondence toward one version or the other. Features determined correspondence, whether they were luminance-defined or not. Moreover, correspondence could be established on the basis of similarity, when features were not identical between alternations. Finally, the stronger the feature information supported a certain correspondence solution the more it dominated spatiotemporal information. 相似文献
55.
Hein T Schmeltzpfenning T Krauss I Maiwald C Horstmann T Grau S 《Human movement science》2012,31(3):683-694
Several studies have used variability of continuous relative phase (CRP) to investigate overuse injuries, since low variability is thought to be related to running injuries. This study investigates whether the analysis of CRP variability leads to additional information about possible differences or similarities between healthy and injured runners. Further, a decision about future applications of CRP variability should be based on the ability to implement and interpret data. 18 healthy female runners (CO) and 18 female runners who suffered from iliotibial band syndrome (ITBS) were evaluated by calculating CRP variability for 4 coupling pairs. Besides analyzing continuous variability of CRP, we also averaged it for the whole stance phase and for four predefined stance phase intervals. Confidence intervals were displayed and independent t-tests for comparing the two groups were conducted. During initial and terminal stance phase as well as after heel-off an increase in CRP variability was detected for both groups of runners. In contrast, the foot flat period was characterized by stable joint coordination and a decrease in variability. This paper presents possible interpretations of CRP variability but no statistically significant differences in CRP variability were found between the two groups of runners. Despite the missing statistical significance, a relationship between high CRP variability and injury seems to be conceivable, since the injured runners demonstrated an increased variability for all couplings in the first half of the stance phase. Further application of CRP variability in biomechanical research is essential to determine whether a relationship exists between injury and coordination variability. 相似文献
56.
Objective: This study assessed: (1) whether risk perceptions about skin cancer were related to parent's use of sunscreen on their children; (2) which combination of assessments susceptibility and severity best explain parental sunscreen protection behaviours and (3) whether risk perceptions influence behaviour directly through intentions or through attitudes, subjective norms and self-efficacy. Design: Two longitudinal studies assessed sunscreen protection behaviours of parents for their toddlers (N?=?391) and young children (N?=?436). Main outcome measure: Parent's use of sunscreen on their children. Results: Risk perceptions correlated with future sunscreen protection behaviours of parents but were lower than those of attitude, social influence and self-efficacy. Treating susceptibility and severity as an additive function resulted in the best model fit. Risk perceptions were related with future intention and future sunscreen protection behaviour, but the effects were mediated through attitude, social influence and self-efficacy. Conclusions: Our path analyses suggest treating susceptibility and severity as an additive function. A multiplicative model without main effects - although often used - had the poorest fit. Risk perceptions influence behaviour by influencing attitudinal and self-efficacy beliefs. Addressing risk perceptions in health communication programs is relevant when the purpose is to increase awareness and to influence attitudes and self-efficacy. 相似文献
57.
The dominant view of the ventral and dorsal visual systems is that they subserve perception and action. De Wit, Van der Kamp, and Masters (2011) suggested that a more fundamental distinction might exist between the nature of information exploited by the systems. The present study distinguished between these accounts by asking participants to perform delayed matching (perception), pointing (action) and perceptual judgment responses to masked Müller-Lyer stimuli of varying length. Matching and pointing responses of participants who could not perceptually judge stimulus length at brief durations remained sensitive to veridical stimulus length (egocentric information), but not the illusion (allocentric, context-dependent information), which was effective at long durations. Distinct thresholds for egocentric and allocentric information pick up were thus evident irrespective of whether perception (matching) or action (pointing) responses were required. It was concluded that the dorsal and ventral systems may be delineated fundamentally by fast egocentric- and slower allocentric information pick up, respectively. 相似文献
58.
Jonathan van 't Riet Robert A. C. Ruiter Marieke Q. Werrij Math J. J. M. Candel Hein de Vries 《European journal of social psychology》2010,40(7):1261-1276
Health‐promoting messages can be framed in terms of the gains that are associated with healthy behaviour (gain frame) or the losses that are associated with unhealthy behaviour (loss frame). In the present research, we examined the role of positive and negative affect in the persuasive effects of gain‐ and loss‐framed health‐promoting information. Experiment 1 (N = 98) showed that gain‐framed information resulted in higher levels of information acceptance than loss‐framed information and that this effect was mediated by positive affect. The results of Experiment 2 (N = 129) showed that gain‐framed information resulted in higher levels of information acceptance and attitude, an effect that was again mediated by positive affect. In addition, loss‐framed information resulted in more negative affect than gain‐framed information and negative affect increased participants' intention to engage in the healthy behaviour. These results suggest that affect may be of great importance in the persuasion process and may be particularly helpful to explain the underlying mechanisms of message framing effects. The findings also suggest that gain‐ and loss‐framed messages offer distinct pathways to persuasion. Copyright © 2009 John Wiley & Sons, Ltd. 相似文献
59.
A content analysis was conducted to examine gender-role stereotypes in toy commercials airing during the after-school hours in October, 2004, on the U.S. Nickelodeon network. The sample included 455 toy commercials, which were analyzed for the type of toy, number of identifiable boys and girls, gender portrayal, gender orientation, age of children, type of interaction, setting, and color of setting. The majority of girl and boy characters were featured in gender-specific toy commercials, and there were more identifiable girls than boys. Almost one-half of the characters were children (6-to-10-years old) who predominantly played indoors, in mixed colored settings, and engaged in cooperative play. Boys were more likely than girls to be shown outdoors and playing competitively. 相似文献
60.