Attitudes, Attitude Formation, and Cognitive Dissonance (7A)

The scientific study of attitudes has been central to social psychology since the discipline's inception, with Gordon Allport famously declaring in 1935 that attitude is "the most distinctive and indispensable concept in contemporary American social psychology." Early researchers recognized that understanding how people evaluate objects, people, and ideas could illuminate everything from consumer behavior to political movements to public health compliance. The fundamental question driving this research was deceptively simple: why do people hold the evaluative positions they do, and what happens when those evaluations come into conflict with behavior or new information? This question has generated one of the richest theoretical traditions in the behavioral sciences, culminating in theories that are directly tested on the MCAT.

From these foundational contributions, a central tension emerged: if attitudes are stable evaluative dispositions, why do they sometimes fail to predict behavior, and what psychological mechanisms operate when attitudes and actions diverge? The concept of cognitive dissonance offered a powerful answer, and understanding the conditions under which attitudes form, strengthen, and change remains essential for the MCAT's treatment of behavior and behavior change.

An attitude is a relatively enduring evaluation of an object, person, group, idea, or event along a favorable–unfavorable dimension. Attitudes are not monolithic; they are composed of three interrelated components often described by the ABC model — Affective (emotional reactions), Behavioral (observable actions or behavioral tendencies), and Cognitive (beliefs and thoughts about the attitude object). These components may align or conflict, and the degree of their consistency influences both attitude strength and behavioral prediction. Understanding this tripartite structure is essential for the MCAT, as questions frequently require distinguishing which component of an attitude is being described in a passage.

The diagram above illustrates a critical MCAT concept: the same attitude object can be evaluated through each of the three channels independently. In practice, MCAT passages often describe a person's feelings, beliefs, and behaviors separately, and the question stem asks you to identify which component is being referenced. For instance, a passage describing a patient's emotional discomfort at the thought of a vaccination targets the affective component, while a passage describing the patient's factual beliefs about vaccine efficacy targets the cognitive component. The interrelationship among these components also provides the groundwork for understanding cognitive dissonance — dissonance arises most powerfully when the behavioral component (what someone actually does) contradicts the affective or cognitive components (how they feel or what they believe).

How Attitudes Form

Attitudes are not innate; they develop through several well-established learning mechanisms. Direct experience produces some of the strongest and most behaviorally predictive attitudes — a child who is bitten by a dog develops a more potent negative attitude toward dogs than one who merely hears about dog bites. Classical conditioning shapes attitudes by pairing a neutral stimulus with one that already elicits an emotional response; advertisers exploit this by pairing products with attractive imagery. Operant conditioning shapes attitudes through reinforcement (social approval for expressing certain views) or punishment (social censure for expressing others). Finally, observational learning (Bandura's social learning theory) allows attitudes to form vicariously by watching role models or media figures express evaluations and experience consequences.

How Attitudes Change: Dual-Process Persuasion

The Elaboration Likelihood Model (ELM) of Petty and Cacioppo proposes that persuasion occurs along a continuum of elaboration, with two prototypical endpoints. The central route is engaged when the audience has both the motivation and the ability to process the message carefully; here, argument quality is paramount, and resulting attitude changes tend to be durable, resistant to counter-persuasion, and predictive of behavior. The peripheral route is engaged when motivation or ability is low; here, surface-level cues such as source credibility, attractiveness, number of arguments (regardless of quality), and emotional appeals drive attitude change. Peripheral-route changes are typically temporary and susceptible to further persuasion.

Cognitive Dissonance: The Engine of Internal Attitude Change

Festinger's cognitive dissonance theory holds that when two cognitions are psychologically inconsistent — or when a behavior contradicts an existing attitude — an aversive motivational state called dissonance is aroused. The magnitude of dissonance depends on two factors: the importance of the cognitions involved and the ratio of dissonant to consonant cognitions. Individuals reduce dissonance through three primary strategies: (1) changing the attitude to align with behavior, (2) changing the behavior to align with the attitude, or (3) adding new consonant cognitions that rationalize the inconsistency. A classic finding illustrating these mechanisms is the Festinger and Carlsmith (1959) experiment: participants who were paid $1 (insufficient justification) to tell another participant that a boring task was enjoyable subsequently rated the task more favorably than those paid $20 (sufficient justification). The $1 group could not justify their counter-attitudinal behavior with the payment, so they resolved dissonance by genuinely shifting their attitude toward the task.

Functional Theories: Why We Hold Attitudes

Daniel Katz (1960) proposed a functional theory of attitudes arguing that the same attitude can serve different psychological functions for different people, and persuasion is most effective when it targets the specific function an attitude serves. Four key functions are recognized: the utilitarian function (attitudes that maximize rewards and minimize punishments), the knowledge function (attitudes that organize and simplify experience), the ego-defensive function (attitudes that protect self-esteem from threatening truths), and the value-expressive function (attitudes that communicate core values and self-identity). Understanding which function an attitude serves is essential for predicting how resistant it will be to change.

Moderators of the Attitude–Behavior Link

LaPiere's classic study raised the question of when attitudes predict behavior. Subsequent research identified several moderating variables. Attitude strength (formed through direct experience, frequently activated, held with high certainty) is a major moderator — strong attitudes predict behavior far better than weak ones. Attitude specificity matters as well: specific attitudes (toward recycling aluminum cans) predict specific behaviors better than general attitudes (toward environmentalism). Self-monitoring is an individual-difference moderator; low self-monitors act more consistently with internal attitudes, while high self-monitors adjust their behavior to fit situational norms. Finally, situational constraints (social pressure, norms, opportunity) can override even strong attitudes, a factor that partially explains LaPiere's original finding.

The following worked example simulates the type of passage-based reasoning the MCAT requires, walking through the application of cognitive dissonance theory to a clinical scenario step by step.

Multiple theories account for attitude change, and the MCAT expects you to distinguish among them. The following table compares the major frameworks, highlighting their mechanisms, key predictions, and the conditions under which each is most applicable. Understanding these distinctions will prevent common errors on passage-based questions where distractors reference the wrong theory.

The concepts of attitudes and cognitive dissonance do not exist in isolation on the MCAT; they intersect with several other testable domains. Understanding these connections will strengthen your ability to answer integrative questions that span multiple content areas within Foundational Concept 7 and beyond.

A particularly important advanced connection involves Bem's self-perception theory, which provides an alternative explanation for the same phenomena that dissonance theory explains. Bem argued that when individuals have weak or ambiguous prior attitudes, they simply infer their attitudes from observing their own behavior, much as an outside observer would — no aversive arousal is necessary. Research has largely supported a reconciliation: dissonance processes dominate when the attitude is strong and the behavior is clearly counter-attitudinal, while self-perception processes dominate when the initial attitude is weak or ambiguous. For the MCAT, be prepared to distinguish between scenarios that invoke dissonance (strong prior attitude contradicted by behavior) and those better explained by self-perception (weak prior attitude with behavior providing new information).