While Durkheim defined anomie as 'normlessness,' Merton adapted the term to describe the structural strain that occurs when there is a disconnect between culturally defined goals and the legitimate means available to achieve them. This strain often leads individuals to adopt deviant methods to reach those goals.

Robert Merton was a pivotal figure who advocated for 'middle-range theories' to bridge the gap between abstract grand theories and empirical research. His strain theory of deviance, which analyzes the discrepancy between culturally approved goals and the institutionalized means to achieve them, remains a cornerstone of sociological thought. By integrating these diverse approaches, Merton significantly advanced the scientific rigor and analytical depth of modern sociology, influencing both macro and micro perspectives.

Disengagement theory, proposed by Cumming and Henry, suggests that it is functional for both society and the individual for the elderly to gradually withdraw from their social roles. This process allows for an orderly transfer of power and responsibilities to younger generations, maintaining social equilibrium as individuals age and prepare for the end of life.

Latent functions are the unintended and often unrecognized consequences of social patterns. Unlike manifest functions, which are intended, latent functions can have various outcomes. They may be functional (beneficial), dysfunctional (harmful), or neutral depending on the context and the specific social structure being analyzed. Robert Merton emphasized that these hidden consequences are crucial for a complete sociological understanding.

Functionalism, or structural functionalism, views society as a system of interconnected parts that function together to maintain social equilibrium. Each institution, such as family, education, or government, performs specific functions that contribute to the overall survival and stability of the social structure.

Merton's strain theory posits that deviance occurs when there is a disconnect between cultural goals and the institutionalized means to achieve them. 'Innovators' are those who accept the cultural goal of success (such as wealth) but reject or lack access to legitimate means (such as education or employment). Consequently, they turn to unconventional or illegal methods, such as theft or fraud, to attain these goals.

The functionalist perspective views society as a system of interconnected parts that function together to maintain stability. Consequently, it often focuses on how social institutions contribute to order rather than how they facilitate radical social change.

In sociology, latent functions are the unintended or unrecognized consequences of a social institution. While the manifest function of college is to provide formal education and credentials, latent functions include social networking, finding romantic partners, and engaging in extracurricular activities, which all contribute to social development and integration outside of the primary academic curriculum.

The functionalist perspective views society as a complex system whose parts work together to promote stability and solidarity. Functionalists argue that social institutions, such as family, education, and government, exist because they perform essential functions that maintain the equilibrium of the social order. This perspective emphasizes consensus and the positive contributions of institutions to the overall health and efficiency of the social structure.

Merton's strain theory posits that conformity is the most common adaptation because most individuals continue to accept both the culturally approved goals and the legitimate means to achieve them, even when faced with structural barriers. This adherence to societal norms ensures the stability of the social system, whereas other adaptations like innovation or rebellion represent deviations from the established order.