Reading focus
Syllabus: How Do Prejudice and Discrimination Arise—and Change?
Compare evidence for immediate responses, durable change, and behavior across intervention approaches.
Why you’re reading it. Develop standards for judging a proposed remedy rather than choosing one from a favorable headline.
A question to consider. How would your recommendation change if a large average benefit came mainly from small studies measuring attitudes immediately after an activity?
Why this reading
A plausible intervention can have an unconvincing evidence base. This review provides tools for asking whether reported improvements are durable, behaviorally meaningful, and supported beyond small studies with favorable results.
Before you read
An effect size summarizes a contrast; its practical meaning depends on the outcome. Publication bias can make available studies unrepresentative of all studies conducted. A systematic search still has boundaries defined by eligibility rules.
Read for
- Inspect which populations, forms of prejudice, outcomes, and designs enter the review.
- Compare estimates across study sizes without treating size alone as a guarantee of quality.
- Ask what the selected field studies contribute beyond an overall average effect.
Consider afterwards
- What evidence would you require before recommending an intervention that improves an immediate attitude score but has no measured behavioral follow-up?
Editorial context
The synthesis covers research from 2007–2019, not all subsequent evidence. Its quantitative review excludes several related literatures, including most gender-based prejudice. Its description of Chang's training as required differs from the original report, which describes voluntary participation. Consult the original for design details. The review's concerns do not establish that every intervention is ineffective.