Psychology Reader

Evaluating Reach and Public Health Impact

Russell E. Glasgow, Thomas M. Vogt, and Shawn M. Boles · 1999 · American Journal of Public Health

Role
Foundational argument · Methodological contribution
Difficulty
Accessible
Full work length
6 pages
Type
Journal article

Access

Psychology Reader links to legitimate sources and does not host article PDFs.

Reading focus

Syllabus: How Can Effective Psychological Care Reach More People?

Apply the framework to the delivery proposals while keeping individual and organizational denominators separate.

Why you’re reading it. Make population impact more specific than the number of appointments delivered.

A question to consider. A programme doubles enrolment but recruits mainly from already well-served groups. Which RE-AIM questions would reveal that limitation?

Why this reading

A programme’s effect among participants is only part of its public health value. RE-AIM makes participation, organizational uptake, delivery and persistence visible alongside outcomes.

Before you read

Reach concerns the proportion and representativeness of individuals participating. Adoption concerns settings and staff. Efficacy, implementation and maintenance complete the framework. A denominator defines the population against which a proportion is calculated.

Read for

  1. Distinguish individual participation from organizational adoption and ask who is missing from each denominator.
  2. Examine the proposed relationships among dimensions and the practical difficulty of measuring them.

Consider afterwards

  1. A programme has strong outcomes but reaches few eligible people. What information would help explain its limited reach?
  2. How could an apparently successful expansion increase inequalities?

Editorial context

This general health-promotion framework is not a psychotherapy trial. The original paper presents ways of combining dimensions as hypotheses, with uncertainties about weights and measurement. Its 2019 development emphasizes context, adaptations, costs and pragmatic evaluation. The framework organizes questions; it does not supply a validated score proving impact.