Step 1: Understanding the Question:
The question asks us to identify the sub-discipline of psychology that deals with solving social issues and helping people adjust within their work and social environments.
Step 2: Detailed Explanation:
• Community psychology is specifically focused on person-environment interactions and how social institutions affect individuals and groups.
• Unlike clinical psychology, which heavily focuses on diagnosing and treating individual psychopathology, community psychology works on systemic changes.
• It actively applies psychological principles to resolve broad-scale social issues, enhance quality of life, and design collaborative interventions for work and living groups.
• Social psychology studies how individuals are influenced by others but is largely theoretical and experimental rather than intervention-based.
• Counselling psychology primarily deals with personal and interpersonal functioning across the lifespan, focusing on emotional, social, and vocational concerns.
• Therefore, the integration of psychological knowledge to address social problems and systemic adaptation is the hallmark definition of community psychology.
Step 3: Final Answer:
The correct field that focuses on applying psychological knowledge to social problems and group adaptation is Community Psychology.