crosscase

Crosscase is a term most often encountered in qualitative research, where it refers to cross-case analysis—the comparative examination of multiple cases within a single study to identify patterns that emerge across cases. The goal is to move beyond single-case descriptions by synthesizing findings to develop or test theoretical propositions and to assess whether insights hold across different contexts within the study.

In practice, researchers typically conducting within-case analyses first and then perform cross-case analysis to compare patterns, divergences, and causal explanations across cases. Common approaches include cross-case synthesis and cross-case pattern matching, often organized in a matrix or codebook that maps case-level data to overarching themes. Techniques such as replication logic, where cases are purposefully selected to replicate prior findings, and pattern deviation analysis, are used to strengthen explanations and refine theory.

Cross-case analysis is widely employed across disciplines, including political science, sociology, education, management, and policy research, particularly in studies that involve multiple units of analysis or purposefully selected cases. The term is usually written as cross-case analysis or cross-case synthesis rather than a single word; in some casual usage, "crosscase" may appear as a shorthand form, but standard practice favors hyphenation or two words.

Limitations include subjectivity in coding, the need for careful selection of comparable cases, and challenges in transferring findings beyond the study context. When reported transparently, cross-case analysis can yield robust, theory-building insights and contribute to cumulative knowledge in qualitative research.