Psychology is the academic and applied study of mental functions and behaviors. The word "psychology" comes from two specific Greek words—psyche, which means "soul," "life," or "mind," and logia, which means "the study of." Simply put, psychology is the study of the mind. The overarching goal of psychology is to understand the behavior, mental functions, and emotional processes of human beings. This field ultimately aims to benefit society, partly through its focus on better understanding of mental health and mental illness.
Sociology is a branch of the social sciences that uses systematic methods of empirical investigation and critical analysis to develop and refine a body of knowledge about human social structure and activity. Sometimes the goal of sociology is to apply such knowledge to the pursuit of government policies designed to benefit the general social welfare. Its subject matter ranges from the micro level to the macro level. Microsociology involves the study of people in face-to-face interactions. Macrosociology involves the study of widespread social processes. Sociology is a broad discipline in terms of both methodology and subject matter. The traditional focuses of sociology have included social relations, social stratification, social interaction, culture, and deviance, and the approaches of sociology have included both qualitative and quantitative research techniques.   
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