Behavioral intention is a function of both attitudes and subjective norms toward that behavior (also known as the normative component). Attitudes being how strongly one holds the attitude toward the act and subjective norms being the social norms associated with the act. The stronger the attitude and the more positive the subjective norm, the higher the A-B relationship should be. However, the attitudes and subjective norms are unlikely to be weighted equally in predicting behavior. Depending on the individual and situation, these factors might have different impacts on behavioral intention, thus a weight is associated with each of these factors. A few studies have shown that direct prior experience with a certain activity results in an increased weight on the attitude component of the behavioral intention function.
