Health messages to promote fruit and vegetable consumption at different stages: A match-mismatch design

Objective: To examine the effectiveness of matching health messages promoting fruit and vegetable intake to the Health Action Process Approach stages of change.

Design: In a randomised controlled trial, 205 undergraduate students (non-intenders n = 123; intenders n = 82) were exposed to one of three health messages, targeted at non-intenders, intenders and controls.

Main outcome measures: Three longitudinal assessments of stage, fruit and vegetable intake, and social-cognitive determinants were obtained.

Results: Stage-specific effects of the interventions were confirmed. For self-efficacy, a stage by health message crossover interaction emerged, with both non-intenders and intenders in the matched conditions scoring higher in self-efficacy. Furthermore, in line with predictions, non-intenders in the matched condition showed higher risk perception, outcome expectancies, intention, and stage progression immediately after message exposure, and lower levels of action planning and coping planning a week later in the mismatched condition, but for these outcomes no differences across conditions were obtained among intenders. Multiple mediation analyses confirmed the facilitating role of self-efficacy and behavioural intention among non-intenders.

Conclusions: Stages should be considered when designing health messages, although more interactive interventions for intenders and extended measurement time frames may be required.     

The interpretation of change in verbal reports: Implications for health psychology

Abstract

This paper raises a number of issues for health psychology in relation to the interpretation of change in verbal reports. Drawing on a typology of change developed to evaluate organisational interventions, it is suggested that change may occur at an alpha level (e.g. changed health status), beta level (e.g. a recalibration of the respondent's scale for assessing health status) or gamma level (e.g. a reconceptualisation of the meaning attached to health). Given the likely presence of beta and/or gamma change in intervention data in health psychology, researchers may be analysing their change data at an inappropriate level. A number of existing methodologies which attempt to detect beta and gamma change are presented and discussed. The need to develop further methodologies which focus more explicitly on the nature of change is highlighted. Finally, the proposed typology has a number of practical implications for the design of health promotion interventions.     

Differences in psychosocial factors and fat consumption between stages of change for fat reduction

Abstract

Differences in fat consumption and psychosocial factors between subjects in different trans-theoretical stages of change for fat reduction were studied. Data on fat consumption, self-rated fat intake, attitudes, social support and self-efficacy were collected among a sample of 507 adults. Analysis of variance with Scheffe's multiple-comparison test was used to study differences in these factors between stages of change. Attitudes and social support were most positive among subjects in preparation and action. Self-efficacy expectations were lowest among subjects in contemplation and preparation. Fat consumption was highest among precontemplators hut no substantial differences between other stages were found. It is concluded that subjects in different stages of change differ in psychosocial factors that are regarded as important determinants of behavioral change. Based on these differences it is recommended to develop stage-tailored nutrition education. A majority of subjects in maintenance consumed more fat than is recommended. Therefore, it is suggested that the usually applied staging algorithms might need adjustment for a valid application in nutrition research.     

Person–organization (culture) fit and employee commitment under conditions of organizational change: A longitudinal study

This longitudinal study examines how person–organization fit, operationalized as congruence between perceived and preferred organizational culture, relates to employees’ affective commitment and intention to stay with an organization during the early stages of a strategic organizational change. Employees in a large energy company completed surveys before (N = 687) and after (N = 627) the change. We measured perceptions and preferences with regard to four components of organizational culture (human relations, open systems, internal process, and rational goal) derived from the Competing Values Model (Quinn, 1988), as well as affective commitment to the organization and intention to stay. Using polynomial regression and response surface analyses, we found that both perceived culture and culture fit related positively with the criterion variables within and across time. The strongest evidence for relations involving fit was obtained for those components of culture specifically targeted for change. Implications for future research and the management of organizational change are discussed.     

To watch or not to watch: Infants and toddlers in a brave new electronic world

For some time now, questions have been asked about the impact of television and video materials on the cognitive and social development of preschoolers and older children. More recently, these same questions have been asked in relation to the extensive exposure to these media that infants and toddlers are currently experiencing. To answer these questions, we review current research that explicitly targets these concerns and provide new insights into the role these media play in early development.     

高中生英语阅读知觉广度的眼动研究

该研究采用经典的"呈现随眼动变化技术"对高中生的英语阅读的知觉广度进行了眼动研究。结果发现:1)高中生英语阅读知觉广度的右侧范围是注视点右侧8～11个字符的空间;2)高中生的英语阅读知觉广度已达到成人水平。     

The Obama effect: Decreasing implicit prejudice and stereotyping

This project explores the impact of Barack Obama’s presidential campaign and the resulting high levels of exposure to a positive, counter-stereotypic Black exemplar, on prejudice and stereotyping among non-Black participants. We found dramatically decreased levels of implicit anti-Black prejudice and stereotyping as compared with bias observed previously at the same institutions and in the literature. Providing some insight why the bias was reduced, Study 1 demonstrated that participants had positive Black exemplars come to mind or anticipated that other people have positive exemplars come to mind when they thought of Black people and this was associated with low levels of racial prejudice. Our second study revealed that participants who had qualities strongly associated with Obama as a political figure (e.g., president) activated when they were primed with “Black” had lower levels of implicit prejudice. These findings indicate that the extensive exposure to Obama resulted in a drop in implicit bias.     

Nietzsche on creating and discovering values

ABSTRACT

This article considers Friedrich Nietzsche’s claims about value creation alongside his proclamation that ‘nature is always value-less’ (GS 301), assessing their implications for his metaethics. It begins by weighing the evidence for a recent constructivist interpretation of Nietzsche’s metaethics, arguing that despite several apparent interpretive advantages, Nietzschean constructivism ultimately fails. Through a close reading of GS 301 and related passages, the constructivist interpretation is shown to be misguided in taking Nietzsche’s talk of value creation as expressing (or playing a significant role in) a metaethical view according to which the evaluative attitudes of philosophers ground what is valuable. Against this, it is argued that GS 301 should be understood as an assertion of the status of philosophers as the causal sources of new evaluative outlooks that shape the held values of their respective cultures, a claim developed through analysis of passages in which Nietzsche discusses his ideal of the ‘genuine philosopher’ and contrasts this figure with ‘critics’ or ‘philosophical laborers’ (BGE 210–211). It is next argued that, insofar as it is best understood as describing a social or anthropological phenomenon rather than a metaphysical one, GS 301 is a poor piece of evidence not only for the constructivist interpretation, but in fact for any account of Nietzsche’s metaethical position—including radical anti-realist interpretations informed by his statement that ‘nature is always value-less’. The paper then concludes by appealing to another passage, GS 55, which hints towards a very different—and plausibly realist—picture of Nietzsche’s metaethics