Dietary supplement use has increased significantly over the past decade. The use of supplements among adolescents seems to be influenced by their beliefs and attitudes. The influence of coaches, parents, and athletic trainers also may be important. The purpose of this study was (1) to determine whether attitudes are a better predictor of adolescents' intentions to use dietary supplements than a...

The present study extends the previous research on the social influences on quitting by investigating inconsistencies between different types of social norms and their main and moderating effects on quitting intentions. The theory of planned behaviour (TPB) served as the theoretical framework. Social influences were operationalised by subjective quitting norm (significant others' expectations t...

background : the importance of consuming fruits and vegetables (f&v;) in prevention of chronic diseases is known. childhood play an important role in formation of healthy eating habits. the purpose of this study was to examine the effect of education, with application of the theory of planned behavior, on improvement of f&v; consumption. methods : in this quasi-experimental study, 184 fourth, f...

Adult influenza vaccination rates remain suboptimal, particularly among African Americans. Social norms may influence vaccination behavior, but little research has focused on influenza vaccine and almost no research has focused on racially-specific norms. This mixed methods investigation utilizes qualitative interviews and focus groups (n = 118) and national survey results (n = 1643) to assess ...

background: ritalin is an amphetamine that possible to abuse, especially among college students. this study performed with aim to determine the attitudes, subjective norms, prototype, willingness and behavioral intentions regarding ritalin abuse among college students. methods: this cross-sectional study was conducted among 264 college students of isfahan university of medical sciences, during ...

This study presents an extended technology acceptance model that integrates innovation diffusion theory to investigate what determine user mobile commerce acceptance. This paper models the factors relationships such as perceived usefulness, perceived ease of use, personal innovativeness, subjective norms, behavioral control and intention to adopt mobile commerce. The proposed model was empirica...

It is very encouraging that the authors of this special issue are giving renewed attention to the contribution of social norms to the creation and maintenance of culture. Such a focus has long been called for (Pepitone, 1976), but rarely achieved up to the present. Focusing on norms is one way of recontextualizing social psychology, and another is to make sure in our studies that we sample a fu...

Black individuals are usually reluctant to co-operate with the police (Smith, 1983a). We propose that a history of unpleasant interactions with the police generates hostile attitudes towards the institution (Jefferson & Walker, 1993). Using a sample of 56 black and 64 white participants, we examined whether quality of contact predicts black people's attitudes and subjective norms concerning co-...

Two studies involving 26 behaviors were perforned to test four hypotheses. Between-participants and within-participants analyses of attitudes, subjective norms, behavioral intentions and actual behaviors suggested the following conclusions. First, consistent with Trafimow and Finlay (1996), the prediction of intentions from attitudes and subjective norms is better when within-participants analy...