Predicting e-bike users’ intention to run the red light: An application and extension of the theory of planned behavior

Electric bike (e-bike) users in China have a high red light running (RLR) rate, contributing to a large number of accidents. This paper aims to examine the psychological motivation of e-bike users’ RLR intentions. A survey questionnaire was designed employing the construct of theory of planned behavior (TPB). The survey was performed in Chengdu, China in November 2016. We found that users older than 40 identify themselves as more cautious riders. Younger riders have higher intention to run the red light. E-bike users with car drivers’ licenses regard running the red light as a more difficult task to perform, and regard this behavior as more morally wrong. Hierarchical regression was used to analyze the data. The results showed that demographic variables (age, marriage status, and college degree), TPB variables (attitude and perceived behavioral control) and extended variables (moral norm and self-identity) are significant predictors for the intention of RLR behavior. The results could provide reference for designing more effective interventions and safety education programs for reducing e-bike users’ RLR rate.     

Drivers' compliance with speed limits: an application of the theory of planned behavior

The theory of planned behavior (TPB; I. Ajzen, 1985) was applied to drivers' compliance with speed limits. Questionnaire data were collected for 598 drivers at 2 time points separated by 3 months. TPB variables, demographic information, and self-reported prior behavior were measured at Time 1, and self-reported subsequent behavior was measured at Time 2. In line with the TPB, attitude, subjective norm, and perceived control were positively associated with behavioral intention, and intention and perceived control were positively associated with subsequent behavior. TPB variables mediated the effects of age and gender on behavior. Prior behavior was found to moderate the perceived control-intention and perceived control-subsequent behavior relationships. Practical implications of the findings for road safety and possible avenues for further research are discussed.     

Young driving learners’ intention to use a handheld or hands-free mobile phone when driving

This paper presents a survey investigating young driving learners’ intention to use a handheld or hands-free mobile phone when driving. A sample of 164 young driving learners completed a questionnaire based on the theory of planned behavior (TPB), which measured people’s intentions to use mobile phone while driving in handheld condition or hands-free condition, along with their attitudes towards the behavior, subjective norms, perceived behavioral control. The regression analysis models revealed that the TPB was able to explain 43% and 48% variance in hands-free mobile phone use intention and handheld mobile phone use intention, respectively, with perceived behavioral control emerging as the strongest predictor. In addition, TPB components, usage frequency and perceived risk were more dependent on gender than age. These results have several theoretical and practical implications. In particular, interventions should emphasize on the risk of hands-free mobile phone use when driving for young drivers, especially for young male drivers.     

Analyzing Additional Variables in the Theory of Reasoned Action

This study examined the convergent, discriminant, and predictive validity of several variables proposed to augment the theory of reasoned action (TRA), using both principal components analysis (PCA)/multiple regression and confirmatory factor analysis (CFA)/structural equation modeling (SEM) among a sample of the UK population regarding their intention to have a child. PCA revealed good convergent and discriminant validity for attitude vs. anticipated regret, subjective norm vs. moral norm vs. social relations, but not for intention vs. desire or perceived behavioral control. Multiple regression analyses showed that the additional variables predicted a significant increment in the variance in intention. CFA, however, showed moderate convergent validity and poor discriminant validity and the structural model comprised the 2 predictors from the TRA only.     

Intention of Chinese college students to use carsharing: An application of the theory of planned behavior

Carsharing originated in Europe and then expanded to developed countries such as the United States. With the revival and popularity of the “Sharing Economy,” carsharing has remarkably increased in China in recent years. Carsharing has increased convenience for individuals without private cars and is changing the traditional view of car ownership. Chinese college students are a large, highly educated group with low incomes and low rates of car ownership. Understanding the determinants of Chinese college students' intention to carshare is critical to promote carsharing services. In this research, an expanded version of the theory of planned behavior, which contains environmental concern, is the theoretical research framework. The model was empirically tested by using the questionnaire data of 356 college students from four universities in Qingdao, China. The results indicate that subjective norm and the perceived behavioral control are directly and positively associated with Chinese college students’ intention to use carsharing, and attitude and environmental concern have no direct correlation with the intention. Environmental concern has a significant direct effect on attitude, subjective norm, and perceived behavioral control. In addition, environmental concern indirectly impacts Chinese college students’ intention to use carsharing through subjective norm and perceived behavioral control. The findings yield practical insights for carsharing organizations and transportation planners. Based on these results, limitations of this study and suggestions for further research are discussed.     

Predicting People’s Intention to Donate Their Body to Medical Science and Research

Predictors of people’s intention to register with a body bequest program for donating their deceased body to medical science and research were examined using standard theory of planned behavior (TPB) predictors (attitude, subjective norm, perceived behavioral control) and adding moral norm, altruism, and knowledge. Australian students (N = 221) at a university with a recently established body bequest program completed measures of the TPB’s underlying beliefs (behavioral, normative, and control beliefs) and standard and extended TPB predictors, with a sub-sample reporting their registration-related behavior 2 months later. The standard TPB accounted for 43.6%, and the extended predictors an additional 15.1% of variance in intention. The significant predictors were attitude, subjective norm, and moral norm, partially supporting an extended TPB in understanding people’s body donation intentions. Further, important underlying beliefs can inform strategies to target prospective donors.     

Physically active students' intentions and self-efficacy towards healthy eating

This study investigated intentions and self-efficacy of physically active university students towards healthy eating. The application of Planned Behavior theory has shown that attitudes, intention, perceived behavioral control, and subjective norms play an important role in shaping people's behavior. 96 students, who participated in physical activities, voluntarily completed the Questionnaire for the Planned Behavior Model and the Health Behavior Questionnaire. The former examines attitudes, intentions, perceived behavioral control, and the lately added attitude strength, and role identity towards the behavior factors. The latter assesses one's efficacy expectations towards healthy eating. The regression showed strong associations between the examined variables, signifying that attitudes, perceived behavioral control, and role identity could account for one's intention towards healthy eating behaviors. On the other hand, one's self-efficacy for healthy eating could be explained from the attitudes, intention, perceived behavioral control, and attitude strength held. Overall, systematic participation in physical activities appeared to be accompanied with a relatively healthier diet, while self-efficacy had a significant association with maintaining the healthy eating behaviors. Possible interpretations, limitations, and implications for health professionals are discussed.     

Predicting Participation in Cancer Screening: The Role of Perceived Behavioral Control1

We examined the role played by perceived behavioral control in predicting participation in colorectal cancer screening among individuals recently informed that they were at high risk for this type of cancer. A telephone interview based primarily on the theory of reasoned action was administered to 96 high-risk individuals and 144 average-risk individuals. All participants then were sent materials needed to complete the screening test. In both groups, perceived behavioral control enhanced prediction of intention to complete the test over and above the contributions of attitude and subjective norm. In addition, perceived behavioral control had a direct effect on behavior but only in the high-risk group. Further, for high-risk subjects, knowledge about test procedures moderated the relationship of perceived behavioral control and intention to behavior, but in ways only partially consistent with theory. Finally, the model was better at predicting behavior in the average than in the high-risk group. We conclude that perceived behavioral control plays an important role in the prediction of screening behavior. Perceived behavioral control's motivational role manifests itself unambiguously through its influence on intention. The role of perceived behavioral control above and beyond its influence on intention, however, needs further study and clarification.     

Sports spectator behavior: a test of the theory of planned behavior

The theory of planned behavior has been applied to sports and exercise behaviors. According to this theory, human intention to take action in a specific context is guided by three antecedents: attitude, subjective norm, and perceived behavioral control. Behavioral intention mediates the relationships between these three considerations and its ultimate performance. However, this theory has seldom been applied to the behaviors of spectators of sporting events. A sample of 269 volleyball spectators in Taiwan was studied to examine whether people's intention mediated their attitudes, subjective norms, and perceived behavioral control toward a given behavior, watching the 2010 Fédération Internationale de Volleyball World Grand Prix in Taipei. Regression analyses did not support behavioral intention as a mediator. This result is discussed in the context of planned behavior.     

Predictors of Intention to Take Precautions Against AIDS Among Black College Students1

This research explored the relationship between behavioral intentions to engage in AIDS-risky sexual practices and a variety of variables that are theoretically and/or popularly assumed to be important factors in AIDS prevention. These variables included beliefs and knowledge about AIDS, fear of AIDS, perceived vulnerability of self and others, as well as probability that self and others on one's campus would contract AIDS, perceived efficacy to control exposure to AIDS, self-esteem, general locus of control, and past behavioral reaction to the threat of AIDS. General intention to “do something to protect oneself against AIDS,” and specific behavioral intention to use condoms in vaginal sex were measured and considered as possible proxies for future behavior. Data were collected from 124 black respondents in a southeastern university. In a series of multiple regression analyses, each of these measures of behavioral intentions was “predicted” from the other variables. Results showed that situational efficacy (to protect oneself from AIDS) was the best predictor of general intention, followed by reports of past behavioral changes as a result of the AIDS epidemic, and by knowledge. Proximal fear of AIDS was a negative predictor. For specific intentions, a specific belief about inconvenience in condom use was the best predictor, followed by past behavioral change, followed by knowledge. Normative beliefs, a belief that condoms would prevent disease, and distant threat of AIDS were also significant predictors. Theoretical and policy implications of the findings are discussed.     

Factors influencing car use for commuting and the intention to reduce it: A question of self-interest or morality?

Car use for commuting contributes to various environmental and traffic problems, such as pollution and congestion. Policies aimed at reducing commuter car use will be more effective when they target important determinants of car use and willingness to reduce it. This study examined whether variables reflecting self-interest (from the theory of planned behavior [Ajzen, I. (1985). From intentions to actions: A theory of planned behavior. In J. Kuhl & J. Beckmann (Eds.), Action control: From cognition to behavior (pp. 11–39). Berlin: Springer]) and variables reflecting moral considerations (from the norm-activation model [Schwartz, S. H. (1977). Normative influences on altruism. In L. Berkowitz (Ed.). Advances in experimental social psychology (Vol. 10, pp. 221–279). New York: Academic Press]) were able to explain self-reported car use for commuting and intentions to reduce it in a sample of Canadian office workers. Car use for commuting was mostly explained by variables related to individual outcomes (perceived behavioral control and attitudes) whereas the intention to reduce car use was mostly explained by variables related to morality (personal norms). The study also found that perceived behavioral control moderated the relation between personal norms and behavioral intentions: stronger personal norms were associated with stronger behavioral intentions, but only when perceived behavioral control was low. Some issues evoked by these results are discussed.     

Predicting Child Restraint Device Use: A Comparison of Two Models1

This study's first objective was to apply Ajzen's theory of planned behavior (TPB) in the context of automobile child restraint device use to identify determinants of that behavior. A second objective was to test two specific hypotheses regarding the predictive role of perceived behavioral control: (a) Its inclusion should increase the proportion of variance already explained in intention by the attitudinal and normative components included in the theory of reasoned action; and (b) given the behavior under study, a model in which perception of behavioral control's influence on behavior is entirely mediated by intention, should fit the data. Subjects (N= 590) were parents driving with their 3- to 5-year-old children intercepted while entering or leaving parking lots of different public settings. The behavior of interest, child restraint device use, was rated by two independent observers. A self-report questionnaire assessing all constructs of Ajzen's model was given to the parent, who was instructed to return it by mail. Data were analyzed using LISREL VII. Results showed that perceived behavioral control and, to a lesser extent, attitude, emerged as the main determinants of behavioral intention which was itself predictive of child restraint device use. In addition, both hypotheses regarding the relation between perceived behavioral control on the one hand and intention and behavior, on the other, were supported. Discussion centered first on the mechanism through which perceived behavioral control exerts its influence, and second on the implications of the present results for the theory of reasoned action as well as for the theory of planned behavior.     

Examining the Relationships Between Voting Behavior, Intention, Perceived Behavioral Control, and Expectation

The theory of reasoned action (Ajzen & Fishbein, 1980) and the theory of planned behavior (Ajzen, 1985) are compared in terms of predictive validity and a comparison between behavioral expectation (BE) and behavioral intention (BI) as the immediate antecedent of behavior is offered. In addition, the relationships between attitude-toward-the-act (Aacf), subjective norm (SN), and perceived behavioral control (PBC) as predictors of BE are examined. Results indicate that the theory of planned behavior is a better predictor of intention than the theory of reasoned action and that BI is a stronger predictor of behavior than BE. The results also suggest that Aact, SN, and PBC are better predictors of BI than of BE and that development of a behavioral plan moderates the Aact-BI-B relations.     

Why people fail to bike the talk: Car dependence as a barrier to cycling

Antecedent conditions of cycling have been extensively studied, yet barriers that prevent individuals from choosing bicycle transportation are less known. The present study, conducted on a sample of individuals who were both cyclists and drivers (N = 280), investigated whether dependence on car transportation significantly reduces cycling frequency. It also assessed the predictive validity of a larger set of cycling determinants that included moral, objective environmental, demographic and car-related variables. Responses were analyzed using a structural equation modeling approach. Results show that moral considerations do little to predict cycling frequency and that car-related factors such as perceived behavioral control to reduce car use (β = 0.28) and car use habits (β = -0.27) have the strongest predictive power. Objective environmental factors such as temperature (β = -0.13) and altitude (β = -0.15) or demographic factors such as gender (β = 0.19) were also significant predictors of cycling frequency. The present study highlights a new perspective of understanding cycling behavior and pleads for the inclusion of car-related factors in its future conceptualizations and interventions to encourage it.     

The role of self-concordance for self-reported strategic,tactical, and operational eco-driving

Although most people are aware of the harmful CO₂ emissions produced by the transport sector threatening life on earth now and in the future, they do not eco-drive. Eco-driving improves the vehicle’s fuel or energy economy and reduces greenhouse gas emissions. We investigated the motivational predictors of eco-driving based on the theory of self-concordance (i.e., the consistency between a behavior/goal with the person’s pre-existing values and interests). Data from a cross-sectional online survey with 536 German drivers revealed that self-reported eco-driving was significantly predicted by sustained effort towards eco-driving, which in turn was predicted by self-concordance variables. Therefore, individuals pursuing eco-driving out of strong interest or deep personal beliefs (i.e., autonomous motivation) as opposed to external forces or internal pressures (i.e., controlled motivation) reported greater effort towards this behavior. Furthermore, biospheric striving coherence, i.e., the coherence between personal valuable biopsheric values (i.e., values addressing the well-being of the environment/biosphere) and eco-driving, significantly predicted effort towards eco-driving. In sum, our results suggest that autonomous rather than controlled motives and coherence between behavior and intrinsic rather than extrinsic values are relevant predictors for eco-driving. We discuss implications for future strategies and interventions fostering eco-driving in the long term.     

拖延行为的干预:计划行为理论和实施意向的影响

本研究以计划行为理论为理论框架,通过实验操纵实施意向,采用日记法进行为期5天的纵向追踪,考察计划行为理论的4个核心变量和实施意向如何影响拖延行为的程度及其动态过程。134名大学生在前一周末共列举了接下来5个工作日内拟完成的668项学习相关任务,随后每天报告当天的任务完成情况。多层线性模型分析结果表明:(1)行为意向中介态度和行为控制感对拖延程度的影响,主观规范影响拖延程度的直接效应显著,但经由行为意向的间接效应不显著;(2)形成实施意向能显著降低拖延程度;(3)行为控制感和实施意向加速任务完成进程,行为控制感越强,或形成实施意向,均显著加快任务完成速度。研究结果对于如何进行拖延行为的干预有一定启示和借鉴。     

A Comparison of Health Behavior Constructs: Social Psychological Predictors of AIDS-Preventive Behavioral Intentions

The present study focused on predicting AIDS-preventive behavioral intentions (i. e., intentions to discuss AIDS-related information and to use condoms) from constructs taken from the health belief model, the theory of reasoned action/planned behavior, and social cognitive theory. Questionnaire data were collected from 124 undergraduates using scales from previously published work as well as some new measures designed for this study. Perceived behavioral control, perceived risk, attitudes, self-efficacy, subjective norms, negative expected outcomes, and perceived severity of HIV infection were correlated with at least one intention measure; but regression analyses showed that perceived behavioral control was the strongest independent predictor of condom use intentions and of intentions to discuss AIDS information with a partner. Implications for theory and application are discussed.     

Social Cognitive Predictors of Exercise Intentions Among Substance Users in Recovery

The present study examined the social-cognitive predictors of exercise intention among substance abusers in recovery. An extended version of the theory of planned behavior was used, accounting for past exercise behavior and self-esteem. Members of self-help groups in Melbourne, Australia (N = 201) completed an anonymous questionnaire. Hierarchical regression, multiple mediation, and moderation analysis were used. The findings showed that attitudes and perceived behavioral control were the strongest predictors of exercise intentions, and mediated the effects of past behavior and self-esteem. Psychological interventions to promote exercise among substance abusers should target attitudinal beliefs and build self-control skills.