Actitud, norma subjetiva y control conductual como predictores del consumo de drogas en jóvenes de zona marginal del norte de México

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Abstract

Se tiene como propósito conocer el efecto predictivo de la actitud, norma subjetiva y control conductual sobre la intención y el consumo de drogas en una muestra de 257 jóvenes de una zona urbano-marginal del estado de Nuevo León, México. Los resultados reportaron que 17.1 por ciento de la muestra ha consumido drogas. Tener creencias favorables al consumo de drogas, creencias de que personas significativas toleran el consumo y tener bajo control para resistir el consumo de drogas fueron predictores tanto para la intención como para el consumo de drogas, con una varianza explicada de 47.5 y 40.7 por ciento respectivamente.

Translated abstract

The purpose is to determine the predictive effect of attitude, subjective norm and behavioral control on intention and drug use in a sample of 257 young people in a marginal urban area of northern México. The results showed that 17.1 per cent of the sample had used drugs. Having beliefs favorable to drug use, beliefs that significant people tolerate consumption and poor control for resist drug use were predictors for intend and drug use, with an explained variance of 47.5 per cent and 40.7 per cent respectively.

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Interaction effects in the theory of planned behaviour: studying cannabis use.

James M. Conner, Alan McMillan (1999)

This study employed the theory of planned behaviour (TPB) to investigate the factors underlying intentions and frequency of use of cannabis over a three-month period in a population of students (N = 249). In addition, several hypotheses in relation to the TPB were investigated. The TPB provided good predictions of both intentions (R2 = 0.653; attitude, injunctive norms and perceived behavioural control significant) and behaviour (R2 = 0.711; intentions significant). Other norm measures (descriptive and moral norms) explained additional variance in intentions (p < .01). In addition, habit strength and self-identity explained significant additional portions of the variance in intentions (p < .001), but not behaviour, over and above the TPB variables. Several interactions among these variables were also tested. Attitude moderated the impact of perceived behavioural control (PBC) on intentions (p < .001). Moral norms moderated the impact of attitudes on intentions (p < .001). Habit strength moderated the impact of self-identity on intentions (p < .001). PBC was found to moderate the impact of intentions on behaviour (p < .05). The findings are discussed in relation to how interaction effects further our understanding of the social processes by which variables are related in the TPB.