Which type of case study studies one research entity at two time points separated by a critical event?

A) Snapshot case study
B) Longitudinal case study
C) Pre-post case study
D) Comparative case study

Critical Event

an important occurrence that has a significant impact on an individual, group, or system, often used as a focal point in research or analysis.

Research Entity

An organization, structure, or individual involved in the execution, funding, or facilitation of scholarly investigations.

Longitudinal Case Study

A study that follows the same subjects over a period of time, observing developments or changes in relation to a specific phenomenon.