Properties of intention: component structure and consequences for behavior,information processing,and resistance

Three studies tested the impact of properties of behavioral intention on intention–behavior consistency, information processing, and resistance. Principal components analysis showed that properties of intention formed distinct factors. Study 1 demonstrated that temporal stability, but not the other intention attributes, moderated intention–behavior consistency. Study 2 found that greater stability of intention was associated with improved memory performance. In Study 3, participants were confronted with a rating scale manipulation designed to alter their intention scores. Findings showed that stable intentions were able to withstand attack. Overall, the present research findings suggest that different properties of intention are not simply manifestations of a single underlying construct (“intention strength”), and that temporal stability exhibits superior resistance and impact compared to other intention attributes.     

The mixed blessings of self-knowledge in behavioral prediction: enhanced discrimination but exacerbated bias

Four experiments demonstrate that self-knowledge provides a mixed blessing in behavioral prediction, depending on how accuracy is measured. Compared with predictions of others, self-knowledge tends to decrease overall accuracy by increasing bias (the mean difference between predicted behavior and reality) but tends to increase overall accuracy by also enhancing discrimination (the correlation between predicted behavior and reality). Overall, participants' self-predictions overestimated the likelihood that they would engage in desirable behaviors (bias), whereas peer predictions were relatively unbiased. However, self-predictions also were more strongly correlated with individual differences in actual behavior (discrimination) than were peer predictions. Discussion addresses the costs and benefits of self-knowledge in behavioral prediction and the broader implications of measuring judgmental accuracy of judgment in terms of bias versus discrimination.     

Translating intentions into nutrition behaviors via planning requires self-efficacy: evidence from Thailand and Germany

A first step towards the improvement of daily dietary behaviors is forming an intention to change one's nutrition. However, an intention by itself is not sufficient for successful action. Rather, to translate intentions into behavior, careful planning is recommended. Thus, planning constitutes a mediator between the intention and the behavior. However, if a person lacks self-efficacy, this mediation might fail. Previous research in Costa Rica and South Korea has identified perceived self-efficacy as a moderator of the intention-planning-behavior relationship. To examine further the moderator role of self-efficacy, two additional studies were designed in Thailand and Germany. Study 1 surveyed 1718 Thai university students in terms of a low-fat diet; Study 2 surveyed 1140 German internet users in terms of their fruit and vegetable consumption at two measurement points in time, 6 months apart. Intentions served as predictor, planning as mediator, self-efficacy as moderator, and behaviors as outcomes. First, intentions were translated into nutrition behaviors by planning. Second, self-efficacy moderated this mediation in both studies: The strength of the mediated effect increased along with levels of self-efficacy, even when accounting for baseline behaviors. For planning to mediate the intention-behavior relation, people must not harbor self-doubts. If they lack self-efficacy, intentions are not well translated into nutrition behavior through planning.     

Asking “why” helps action control by goals but not plans

The present research investigated whether asking “why” concerning the pursuit of one goal can affect the subsequent pursuit of a previously chosen goal. Asking “why” should activate cognitive procedures involving deliberation over the pros and cons of a goal (why-mindset). This mode of thinking should spill over to subsequently pursued goals, with different consequences for goal striving guided by goal intentions and for goal striving guided by implementation intentions (if-then plans). As goal intentions guide behavior by effortful top-down action control processes motivated by the expected value of the desired outcomes, being in a why-mindset should induce defensive postdecisional deliberation and thereby promote goal pursuit. In contrast, implementation intentions guide behavior by automatic bottom-up action control processes triggered by the specified situational cues; in this case, being in a why-mindset should eliminate the effects implementation intentions have on goal pursuit. Performance on a handgrip self-control task (Study 1) as well as on a dual-task (simultaneous go/no-go task and tracking tasks; Study 2) supported these predictions: why-mindsets reinforced goal intention effects and impaired implementation intention effects on handgrip and dual-task performance. Implications for effective goal striving are discussed.     

Implementation intentions for physical activity in supportive and unsupportive environmental conditions: An experimental examination of intention–behavior consistency

The primary objective of this investigation was to examine the joint influences of intention strength, executive control resources (ECRs) and implementation intentions on physical activity performance in differentially supportive environmental conditions. In two studies, participants were randomly assigned to implementation intentions or control conditions. Individual differences in ECRs, intention strength and physical activity behavior were measured at baseline in the laboratory; follow-up physical activity was measured via an online questionnaire 7 days after the baseline laboratory session. Study 1 was conducted under activity-supportive environmental conditions (i.e., warm weather, little precipitation), whereas Study 2 was conducted under non-supportive environmental conditions (i.e., cold weather, moderate precipitation). In Study 1, a two-way interaction between ECR and intention strength was observed, such that those with relatively stronger ECR demonstrated stronger intention–behavior relationships than those with relatively weaker ECR; this effect was invariant across experimental conditions. In Study 2, a significant 3-way interaction was observed, such that those with lower ECRs showed greater intention–behavior correspondence in the experimental group compared to the control. Together these findings suggest that the beneficial effects of implementation intentions on intention–behavior correspondence for physical activity may be more potent under challenging environmental conditions, and that they may be of special benefit for those with initially low ECRs.     

Safe and Unsafe Sexual Intentions and Behavior: The Effects of Norms and Attitudes1

A study of 85 heterosexual men, 85 heterosexual women, and 82 homosexual men was undertaken to examine the variables that influence intentions to engage in different sexual practices and actual sexual behavior. On the basis of Fishbein and Ajzen's (1975) theory of reasoned action, it was predicted that the strength of intentions would be related to whether behavior was in accord with intentions. Consistent with expectations, the strength of intention to engage in six different sexual practices (e. g., vaginal intercourse, anal intercourse, oral sex) and the three strategies that modify the risk of HIV transmission (sex with an exclusive partner, sex wearing a condom, and looking for a new partner) predicted actual behavior. Second, it was proposed that attitudes toward one's sexual practices and norms would be related to intentions to engage in safe sex. To reflect differential levels in the safety of behavioral intentions, five safety intention groups were formed: (a) nonpenetrative sex, (b) penetrative sex in an exclusive relationship with a condom, (c) penetrative sex in an exclusive relationship without a condom, (d) penetrative sex in a nonexclusive relationship with a condom, and (e) penetrative sex in a nonexclusive relationship without a condom. Norms, rather than attitudes, distinguished the five safety intention groups. the groups intending to engage in safe sex (nonpenetrative sex or penetrative sex with a condom) perceived lower levels of social approval for their sexual practices than the noncondom groups. Additional analyses showed that past behavior had a stabilizing effect on the intention-behavior relationship, but only for the nonpenetrative and noncondom safety intention groups.     

Cognitive and affective predictors of academic achievement in schoolchildren

The ability of the theory of planned behaviour to predict objectively measured outcomes was tested in school‐age children. Study 1 (N=71) showed that the theory of planned behaviour accounted for significant proportions of the variance in intention and that the intentions predicted scores in a science test; study 2 (N=175) replicated these effects across a broader range of subjects. In addition, study 2 explored the mechanism by which intention was translated into action and demonstrated that intention stability moderated the intention‐academic achievement relationship. Moreover, controlling for a range of cognitive and affective variables, intention and positive affect were independent predictors of intention stability. These findings suggest that although positive affect did not influence intention directly, it did influence intention stability, the mechanism by which intentions are translated into action. Future educational interventions should therefore influence both cognitive and affective factors to promote sustained motivation.     

The Role of Desires,Self-Predictions,and Perceived Control in the Prediction of Training Session Attendance1

Employee attendance at a training session was examined using the theory of reasoned action (Fishbein & Ajzen, 1975). In addition, based on Audi (1973a, b) and Warshaw and Davis (1985), a distinction was made between desires (I want) and behavioral self-predictions (I will), and as in Ajzen (1985, 1987), the role of perceived control as a determinant of these desires, self-predictions, and attendance behavior, per se, was investigated. The results indicated that the best predictors of attendance at the training session were one's desire or motivation to attend the training session and the extent to which one perceived pressure from his or her supervisor to do so. Consistent with the theory of reasoned action, the motivation to attend training was predicted accurately from attitudes and subjective norms (R=.76, p < .001). Moreover, these attitudes and subjective norms were themselves predicted from a consideration of behavioral and normative beliefs, and key beliefs underlying one's desire to attend were identified. However, a consideration of perceived control did not improve the prediction of one's desire to attend training, and neither perceived control nor behavioral self-predictions improved prediction of actual attendance. The discussion focused on the roles of perceived control and different measures of intention in behavioral prediction.     

When Intentions Go Public: Does Social Reality Widen the Intention-Behavior Gap?

ABSTRACT— Based on Lewinian goal theory in general and self-completion theory in particular, four experiments examined the implications of other people taking notice of one's identity-related behavioral intentions (e.g., the intention to read law periodicals regularly to reach the identity goal of becoming a lawyer). Identity-related behavioral intentions that had been noticed by other people were translated into action less intensively than those that had been ignored (Studies 1–3). This effect was evident in the field (persistent striving over 1 week's time; Study 1 ) and in the laboratory (jumping on opportunities to act; Studies 2 and 3), and it held among participants with strong but not weak commitment to the identity goal ( Study 3 ). Study 4 showed, in addition, that when other people take notice of an individual's identity-related behavioral intention, this gives the individual a premature sense of possessing the aspired-to identity.     

Predicting Intention to Save Water: Theory of Planned Behavior,Response Efficacy,Vulnerability, and Perceived Efficiency of Alternative Solutions1

These 2 studies attempted to predict people's intention to save water. Study 1 used a model based on Ajzen's (1991) theory of planned behavior (TPB) and other variables: vulnerability, 2 collective efficacy variables, and subjective effectiveness of alternative solutions (SEAS) to ease drought impact. Study 2 tested a model similar to that of Study 1, but with 2 personal efficacy variables added. Respondents in both studies were residents of Taiwan (Ns= 166 and 210). Analysis indicated that the modified models (R²>.32) were better than the TPB model (R²<.19), and SEAS and response efficacy had crucial effects on people's intentions to retrofit. The studies also found some significant but inconsistent effects of income, dwelling, and education.     

Negative Beliefs as a Moderator of the Intention–Behavior Relationship: Decisions to Use Performance-Enhancing Substances

The theory of reasoned action framework was used to examine performance-enhancing substance use among a sample of college athletes in a prospective longitudinal design. Results indicate that attitudes and subjective norms predicted intention to use the substances, and these intentions predicted actual substance use 6 weeks later. A statistically significant interaction emerged between negative beliefs and intentions predicting behavior such that as negative beliefs grew increasingly negative, the intention–behavior relationship became stronger. Practical and theoretical implications of the influence of negative information on the intention–behavior relationship are discussed.     

Within-person association of volitional factors and physical activity: Insights from an ecological momentary assessment study

ObjectiveCurrent health behavior models of physical activity (PA) suggest that not all PA intentions are translated into actual PA behavior, resulting in a significant intention-behavior gap (IBG) of almost 50%. These models further suggest that higher self-efficacy and specific planning can aid in decreasing this gap. However, as most evidence stems from between-person (trait level), questionnaire-based research, it is unclear how large short-term IBGs are, how self-efficacy and planning covary within-persons across time and whether they similarly predict smaller IBGs. It is likely that day-to-day changes in circumstances and barriers affect these variables thus the applicability of theoretical models is uncertain. Here, within-person prospective analyses of ecological momentary assessment (EMA) data can provide insights.Methods35 healthy participants (aged 23–67) completed four EMA-based questionnaires every day for three weeks. Each prompt assessed PA (retrospectively, “since the last EMA prompt”); PA intentions, planning specificity, self-efficacy, and intrinsic motivation (prospectively, “until the next EMA prompt”) and momentary affect. Generalized logistic mixed-effect modeling was used to test predictors of PA.ResultsAcross the 2341 answered EMA prompts, PA intentions were not enacted in 25% of the episodes (IBG). In episodes with given intentions, PA likelihood increased with higher levels of self-efficacy, planning specificity, and intrinsic motivation. The latter two also positively predicted PA duration and intensity.ConclusionsShort-term intention behavior gaps seem to be smaller than what is known from more long-term studies, most likely as individuals can anticipate the actual circumstances of PA. Further, current health behavior models show validity in explaining within-person dynamics in IBGs across time. Knowing the relevance of planning specificity, self-efficacy and intrinsic motivation for day-to-day variations in PA enactment can inform respective real-time mHealth interventions for facilitating PA.     

Extrinsic and Intrinsic Motivation to Use Computers in the Workplace1

Previous research indicates that perceived usefulness is a major determinant and predictor of intentions to use computers in the workplace. In contrast, the impact of enjoyment on usage intentions has not been examined. Two studies are reported concerning the relative effects of usefulness and enjoyment on intentions to use, and usage of, computers in the workplace. Usefulness had a strong effect on usage intentions in both Study 1, regarding word processing software (β=.68), and Study 2, regarding business graphics programs (β=.79). As hypothesized, enjoyment also had a significant effect on intentions in both studies, controlling for perceived usefulness (β=.16 and 0.15 for Studies 1 and 2, respectively). Study 1 found that intentions correlated 0.63 with system usage and that usefulness and enjoyment influenced usage behavior entirely indirectly through their effects on intentions. In both studies, a positive interaction between usefulness and enjoyment was observed. Together, usefulness and enjoyment explained 62% (Study 1) and 75% (Study 2) of the variance in usage intentions. Moreover, usefulness and enjoyment were found to mediate fully the effects on usage intentions of perceived output quality and perceived ease of use. As hypothesized, a measure of task importance moderated the effects of ease of use and output quality on usefulness but not on enjoyment. Several implications are drawn for how to design computer programs to be both more useful and more enjoyable in order to increase their acceptability among potential users.     

Intending or Pretending? Automatic Evaluations of Goal Cues Discriminate True and False Intentions

This research presents a novel approach to discriminating between true and deceptive statements about intended future behavior. Arguing that true intentions are goal‐directed, we predict that people who genuinely intend to pursue a reported goal will implicitly evaluate goal‐relevant cues positively, whereas people who do not intend to pursue the goal will not. Participants in an experiment were instructed to tell the truth about a planned future behavior (true intention) or to falsely report that same behavior to mask their actual mock‐criminal intention (false intention). As predicted, an evaluative priming task showed that participants with true intention exhibited implicit positive evaluations of cues relevant to the reported goal, whereas participants with false intention did not. Subsequent analyses showed that implicit positivity significantly discriminated between true and false intentions. The findings are discussed in terms of theoretical contributions and implications for the development of future detection tools. Copyright © 2012 John Wiley & Sons, Ltd.     

The role of emotions in predicting sperm and egg donation

Sperm and egg donation allows people who cannot have children naturally to become parents. However, in many countries there is a shortage of donors. Therefore, it is important to assess the factors that influence donation. Across two studies, we assessed the role of social‐cognitive and emotional factors in promoting and deterring sperm and egg donation. Study 1 (N = 138 men) found that feeling anxiety toward discovering a fertility problem and pride positively predicted sperm donation intention and information seeking behavior. By contrast, feeling anxiety toward the process of donation negatively predicted sperm donation intention and information seeking behavior. Study 2 (N = 193 women) found that pride positively and the anxiety toward the process negatively predicted egg donation intentions, but not information seeking behavior. These results suggest that it is important to consider the role of emotions in motivating and deterring people from becoming a sperm and egg donor.     

Predicting the Use of Complementary Medicine: A Test of the Theories of Reasoned Action and Planned Behavior1

The present study employed the theory of reasoned action (TRA) and its extension, the theory of planned behavior (TPB), to investigate the factors underlying intentions and actual use of homeopathy over a 1‐month period. The study was prospective in design; 349 respondents completed a TPB questionnaire during the first phase of data collection, and 139 respondents were contacted (by telephone) in Phase 2 to provide information regarding their use of homeopathy. The findings provided support for the TPB as a predictor of intentions and use of homeopathy, and demonstrated that the model significantly enhanced the predictive utility of the TRA. Attitudes, subjective norms, and perceived control emerged as significant predictors of intention (R²= .49), while intention predicted behavior (R²= .56). In addition, past behavior significantly contributed to the prediction of intention and behavior.     

行为执行意向的理论观点及其相关研究

执行意向是指个体以行动目标为导向,通过连接情景线索和目标导向反应,建立行为意向和实际行为之间联系的中介变量。通过梳理执行意向的概念、心理联系及应用研究,发现执行意向主要与行为意向、自我协调、合作性、计划提醒、自觉性、人格等变量产生心理联系;形成执行意向的人具有克服困难,达到既定目标的积极心理状态。然而,执行意向并不总是发挥其积极效应,其与具体情景、个体差异性等有关。最后,文章从四个方面对今后研究的热点与方向进行了展望。     

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.     

The Intention–Behavior Gap

Bitter personal experience and meta‐analysis converge on the conclusion that people do not always do the things that they intend to do. This paper synthesizes research on intention–behavior relations to address questions such as: How big is the intention–behavior gap? When are intentions more or less likely to get translated into action? What kinds of problems prevent people from realizing their intentions? And what strategies show promise in closing the intention–behavior gap and helping people do the things that they intend to do?