Appreciate your kind guidance. I want to measure PBC , and the subject is employee turnover intention. still very confusing about PBC scale.all research has different scales and , those with high reliability in one research show low in other. which scale is better?
I do not understand this question--self efficacy is measured by a self report- this, of course, it is perceived--there is no other way to measure it--
Perceived Behavoural Control and self-efficacy are different constructs. I remember reading an article that outlined those differences. I will try to find it for you.
Once you settle on which construct to measure, scales with the highest reported reliability are obviously the best choice. However, if none of them are taylored for your behavior, Ajzen provides guidelines to build your own scale. Good luck!
http://www.uni-bielefeld.de/ikg/zick/ajzen%20construction%20a%20tpb%20questionnaire.pdf
Dear Kamelia, I was not able to find the article I mentionned about differences between SE and PBC. The closest I could find for the moment was differences between perceived competence and SE. Did you make any progress with your problem?
Right before interrupting my research, I found it! Ransom-Flint’s thesis introduction has a section on it. I hope it is helpful.
Ransom-Flint, T. (2006). Implementation intentions, personality, and exercise behavior. Thesis
"However, intentions to perform behaviors purportedly are determined not only by attitude toward the behavior and subjective norm regarding the behavior, but also by perceived behavioral control. Perceived behavioral control refers to one’s beliefs about one’s ability to perform the target behavior (e.g., “It would be easy for me to exercise more often”). Perceived behavioral control is influenced by one’s control beliefs about perceptions of obstacles, barriers, skills, resources, or opportunities (internal or external) that may facilitate or inhibit enactment of the behavior (Rutter & Quine, 2002). For example, a perceived internal resource might be one’s ability to perform a type of exercise; a perceived external barrier might be availability of the gym. Furthermore, attributing control over facilitating or inhibiting factors to oneself is an example of an internal control belief, and attributing control to external factors (i.e., not under volitional control) such as luck or chance is an external control belief. Armitage and Conner (1999) have extended the Theory of Planned Behavior further by suggesting that perceived control consists of two components: self-efficacy and perceived control over behavior. The distinction between self-efficacy and perceived control over behavior is based on internal versus external influences on level of perceived control. Self-efficacy is defined as confidence in one’s own ability and is associated with personal competence, ability and skills related to engaging in the target behavior. Perceived control over behavior refers to an assessment of the situational constraints that might hinder the target behavior. Other authors have suggested that perceived control over behavior and self-efficacy are distinct constructs and both should be measured in health behavior research (Abraham, Wight, & Scott as cited in Rutter & Quine, 2002)."
Armitage, C. J., & Conner, M. (1999). Distinguishing perceptions of control from self-efficacy: Predicting consumption of a low fat diet using the theory of planned behavior. Journal of Applied Social Psychology, 29, 72-90.
Rutter, D. R., & Quine, L. (2002). Social cognition models and changing health behaviors. In D. Rutter and L. Quine (Eds.). Changing health behavior: Intervention and research with social cognition models. Buckingham, UK: Open University Press.
I do not see the difference between PBC and SE--both take into account context and both report the conviction that one can bring about something, whether a behavior or an outcome-
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