Evaluation Glossary

Extrapolate

To infer an unknown from something that is known. To estimate the value of a variable outside its observed range.

Source

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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