Laboratory Research: A Question of When, Not If.

Abstract : Laboratory research is discussed in terms of the contribution of laboratory research to knowledge at any given time. Research is viewed as a process of trade-offs. When viewed from this perspective, it is argued that frequently laboratory research may have high utility for addressing problems relevant in the field. Dimensions or classes of trade-offs are addressed. These are: experimental setting fidelity, replication, constraints, threats to health and safety, research not possible in the field, and feasibility. Keywords: Laboratory research; external validity; boundary conditions; field research; validity.