Ever wondered why people do the things they do? As human beings, we are curious by nature but it is interesting to understand why we do certain things. A theory was developed to help understand this curiosity of human behavior, attitudes, and intention on completing a task. This theory is called the Theory of Planned Behavior.

Questionnaires have also been developed to assist with identifying why we may or may not do certain things. In order to complete a TPB questionnaire one needs to under the basics. The TPB is a theory that links one’s beliefs and behaviors. The theory states that intention toward attitude (whether the person is in favor of doing the intention), subject norms (how much social pressure the person feels to do the intention), and perceived behavioral control (if the person feels in control of the action in question), together shape an individual’s behavioral intentions and behaviors. By incorporating these three predictors there is a possibility to increase that the person will consider the intended action and therefore also increasing the possibility of the person actually completing the intention.

Constructing a TPB questionnaire includes various steps measuring different variables. Behavioral Intentions, attitudes, subjective norms, and perceived behavioral control are just a few measures to take in order to begin creating a TPB questionnaire. Below are examples of some questions that can be asked in a questionnaire.

To see additional, more detailed steps on constructing a TPB questionnaire please click on this link. This is a complete A to Z guide of measuring all attributes and completing the questionnaire.