Which theory explains why individuals may change their attitudes to align with their behaviors?

Cognitive Dissonance Theory is the appropriate choice because it specifically addresses the psychological discomfort that arises when individuals hold conflicting beliefs or attitudes, especially when their behavior contradicts those beliefs. When this dissonance occurs, individuals are motivated to reduce the discomfort by changing their attitudes to align more closely with their behaviors. This theory suggests that people strive for internal consistency, and when they partake in an action that contradicts their beliefs, they may alter their beliefs to justify their behavior.

For instance, if someone who values environmental conservation drives a gas-guzzling vehicle, they might experience dissonance. To alleviate this discomfort, they could adjust their attitude by downplaying the importance of environmental issues or convincing themselves that their personal actions do not significantly impact the larger problem. This process illustrates how behavior can lead to an adjustment in attitude to reconcile the inconsistency.

The other options pertain to different social psychological concepts. Social Identity Theory focuses on how individuals identify with groups and the implications of that identity for behavior and attitudes. Attribution Theory examines how individuals interpret and understand the causes of their own or others' behaviors. Social Comparison Theory deals with the process of evaluating oneself in relation to others to gain self-assessment, not specifically about the influence of behavior on attitude change