Psychology MCAT Practice Exam 2026 – Complete All-in-One Guide to Ensure Your Success!

The concept that behavior influences attitude is well-supported by psychological theories such as cognitive dissonance and the principle of self-perception. When individuals change their behavior, particularly in ways that are outwardly visible or significant, they may experience cognitive dissonance—an uncomfortable feeling that arises when one's beliefs are inconsistent with their actions. To resolve this dissonance, individuals may alter their attitudes to align more closely with their new behavior, leading to a change in feelings and beliefs.

For example, if someone engages in behavior that promotes healthy living, such as exercising regularly, they may begin to view themselves as a health-conscious person, which can enhance their positive attitudes towards health-related activities. Thus, the process where slight or substantial changes in behavior lead to an adjustment in attitudes affirms that behavior can indeed instigate a shift in attitudes.