Alternatives to randomized experiments

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

Randomized experiments are preferred for making inferences about causality when they can be implemented and their assumptions are met. Yet assumptions can fail (e.g., attrition, treatment noncompliance) or randomization may be unethical or infeasible. I describe alternative design and statistical approaches that permit testing causal hypotheses and present current empirical evidence related to alternative designs. Alternative designs permit a wider range of research questions to be answered and permit more direct generalization of causal effects; however, when using such designs, estimates of the magnitude of the causal effect may be more uncertain.

Original languageEnglish (US)
Pages (from-to)299-304
Number of pages6
JournalCurrent Directions in Psychological Science
Volume18
Issue number5
DOIs
StatePublished - Dec 1 2009

Keywords

  • Causal inference
  • Quasi-experiment
  • Randomized experiment

ASJC Scopus subject areas

  • Psychology(all)

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