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Advice: Competence in using comparison groups

Developing the necessary skills to identify appropriate comparison groups to contextualize results

Context

Measurement in a vacuum, without considering a counterfactual (what might have happened if we didn’t use the instructional practices we’re measuring) does not tell us if our findings are due to what we’re doing/measuring or something else entirely. When we measure against a comparison group (e.g., a matched comparison, baseline or pretest scores, or using a regression discontinuity design), the data being used to determine efficacy (success in controlled environments) and effectiveness (success in real-world environments) are contextualized and representative of results that are related to what we are implementing.

Teacher Does

  • Understands how different types of comparison groups reduce bias in results.

Leader/Administrator/Decision-maker Does

  • Understands how different types of comparison groups reduce bias in results.

Researcher Does

  • Supports practitioners' development of the skills needed to understand how different types of comparison groups reduce bias in results.

Funder Does

  • Provides opportunities for practitioners to develop the skills they need to understand how different types of comparison groups reduce bias in results.

Family/Developer/Community-member Does

  • Understands how different types of comparison groups reduce bias in results.