Evaluation Glossary

Experimental Research

Scientific investigation in which an investigator manipulates and controls one or more independent variables to determine their effects on the outcome (dependent) variable.


Yarbrough, D. B., Shulha, L. M., Hopson, R. K., and Caruthers, F. A. (2011). The program evaluation standards: A guide for evaluators and evaluation users (3rd ed.). Thousand Oaks, CA: Sage

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