This assignment delves into the application of Organizational Citizenship Behavior (OCB) theory within a research context. It examines the interplay between OCB, organizational justice theory, and the psychological contract theory, addressing their relevance in different cultural and institutional settings. The student is tasked with proposing a suitable research design, including survey questionnaires and data analysis methods, to investigate the relationships between these theories and employee behaviors. Specific attention is given to exploring the applicability of these concepts within a Chinese organizational context.