The Promotion of New Behavior by Forming an Implementation Intention: Results of a Field Experiment in the Domain of Travel Mode Choice1

In the context of an experimental field study, it is analyzed whether furnishing a goal intention with an implementation intention (Gollwitzer, 1993) increases the probability that a new behavior is enacted. For this purpose, 90 students who did not normally use public transportation were asked to test (just one time) a special public transportation offer they had never used before. With a nonobstrusive questionnaire manipulation, the subjects of the experimental group were stimulated to form an implementation intention. The results show that forming an implementation intention significantly increases the probability of enacting the goal intention; that is, testing the public transportation offer. The theoretical and practical implications of this finding are discussed.     

Early impact of the BEST intervention for parents stressed by adolescent substance abuse

Youth involvement in substance abuse can be a source of considerable distress for their parents. Unilateral family interventions have been advocated as one means by which concerned family members can be supported to assist substance‐abusing family members. To date there has been little research examining the impact of unilateral family interventions on the directly participating family members. In this study the early impact of an 8‐week parent‐group programme known as Behavioural Exchange Systems Training (BEST) was evaluated using a quasi‐experimental, waiting list control design. The professionally led programme had been developed to support and assist parents in their efforts to cope with adolescent substance abuse. Subjects were 66 parents (48 families) accepted for entry into the programme between 1997 and 1998. Comparison was made between 46 parents offered immediate entry into the programme and 20 parents whose entry to the programme was delayed by an 8‐week waiting list. At the first assessment 87% of parents showed elevated mental health symptoms on the General Health Questionnaire. Evidence suggested exposure to the intervention had a positive impact on parents. Compared to parents on the waiting list, parents entered immediately into the intervention demonstrated greater reductions in mental health symptoms, increased parental satisfaction, and increased use of assertive parenting behaviours. Copyright © 2001 John Wiley & Sons, Ltd.     

Theory‐Driven Subgroup‐Specific Evaluation of an Intervention to Reduce Private Car Use1

In the context of a 2‐wave panel study, we used Ajzen's (1991) theory of planned behavior (TPB) as the theoretical framework for deriving and systematically testing hypotheses as to how an intervention (a “free” ticket for public transportation) influences the travelmode choice of students. The empirical results show that this intervention caused a drastic decrease in students' car use. The effect of the intervention on behavior is mediated by the causal chain postulated by the TPB. In the second step, we analyzed whether there were subgroup‐specific reactions to the intervention. Surprisingly, the subgroup analysis shows that students with more negative attitudes toward policy measures restricting car use reacted more strongly to the intervention than did students with a more positive attitude.     

Breaking the Habit: On the Highly Habitualized Nature of Meat Consumption and Implementation Intentions as One Effective Way of Reducing It

Reducing meat consumption is an important element of an effective climate protection strategy, but meat consumption is highly habitualized and therefore difficult to change. This article uses an extended version of the theory of planned behavior with habit strength as additional predictor. In one longitudinal (N?=?227) and one prospective correlational study (N?=?212), attitudes toward and perceived ease of meat consumption reduction explained about 60% of variance of meat consumption reduction intentions, with habit strength being the strongest correlate of actual self-reported meat consumption. A third experimental study (N?=?192) demonstrated that implementation intentions can be an effective strategy for realizing reduction aims. We discuss the central role of habits for meat consumption.     

Therapeutic misconceptions: when the voices of caring and research are misconstrued as the voice of curing

Research on doctor-patient communication has characterized such interactions as being asymmetrical. The present article tries to shift emphasis away from the different orientations individuals bring to the communicative setting and attempts to highlight the different orientations ("voices") within a given individual. We draw on an in-depth analysis of discourse between a 21-year-old man who can be ascribed the roles of both patient and potential research subject and an interviewer who acts in both the role of medical staff and researcher. Focusing our analysis on a limited number of linguistic forms (pronouns and demonstratives), it is argued that the use of the same form for different referents signals a conflation of two voices -- the voice of health care ("caring") and the voice of "research." Furthermore, we argue that the voice of research is most likely to be interpreted by the patient/research subject within the framework of curing. As such, the present article promotes a shift in emphasis from different institutional -- and as such often assumed to be preexisting -- orientations between the communicating parties to differing orientations within the individual that cannot help but be misconstrued in terms of the curing voice. Our conclusion focuses on the ethical and discourse analytic implications of analyzing voices in a discussion.     

Is a Stage Model a Useful Approach to Explain Car Drivers' Willingness to Use Public Transportation?

The paper empirically evaluates the utility of a stage approach in describing car drivers' decisions to change to public transportation. Data from 2 samples are used to test whether 5 subgroups assumed to represent an ordered sequence of decision stages derived from an extended version of the model of action phases ( Gollwitzer, 1996 ) is clearer than the changed one. Contrary to expectations, cluster analysis indicates that a 4-cluster solution is most adequate. Whereas the profiles of 3 clusters fit the expected features of the precontemplation, contemplation, and maintenance stages, the existence of separated preparation and action stages was not confirmed. Evidence was also mixed for the assumption that the assignment to the decision stages can be predicted by specific motivational variables.