knowledge or behaviors because of participating in the program and 2) reflections on what the knowledge or behavior was prior to the program (Rockwell & Kohn, 1989).
There are times when it is better (and necessary) to utilize a retrospective pretest evaluation design. These situations include measuring change over a very short period of time (i.e., a four-hour course), attempting to gauge perceptions of change as a result of program participation, attempting to reduce response-shift bias, or trying to evaluate change without having collected baseline data prior to the start of programming efforts (Klatt & Taylor-Powell, 2005). See Figure 11 below.
BEFORE THIS WORKSHOP
AFTER THIS WORKSHOP
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How do you rate your knowledge about:
Conservation tillage systems.
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Crop rotations.
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Weed management under conservation tillage.
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Benefits of conservation tillage.
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Cover crops.
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Pest and disease control.
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Nutrient management.
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Figure 11: Retrospective pre/post-test model. Retrieved from North Carolina State University Extension: https://evaluation.ces.ncsu.edu/evaluation-evaluating-one-time-short-training/
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