The organizational justice (OJ) and organizational citizen behavior (OCB) are two widely studied concepts across all types of formal organizations. Different concepts are used to designate these phenomena.

Thanks for sharing the chapter as a great reference for conceptual framework. Studying how OJ impacts OCB becomes extremely difficult because of measurement difficulties. For example if OJ in academic setting is studied, even if elaborate rules exist about how to measure employees performance and how to determine annual raises, there is a lot of ambiguity in measuring what constitutes excellence in performance (ambiguities come from varitions in how many authors in publications, type of journal, amount of grant funding, service to college, university, broader communit, teaching innovatio). OCB is often dissatisfaction in employees, which creates issues of retention for the organization.

Is they're any requirement for the population or sample to do research about OCB?

The general sampling science applies to such studies. The sampling strategy depends on target population to which findings are to be generalized.

Here red is a scenario. Say your university‘s president wants to examine the reason for issues with faculty morale. You can take astratidied random sample of faculty, treating each college as a stratum.