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AJHP DataBase Section
Research Rating Methodology
Research must address one of these seven research questions
as listed in Table 1
The measurement tools are described using standard measurement categories
as listed in Table 2
Within the context of the research design, the internal validity of each
study is also rated as listed in
Table 3
Research design is rated using a five-point system as
listed in Table 4
The size of each experimental/control group(s) is included (e.g., ne1 = , ne2
=, nc =, etc.)
The total study duration in months and/or years is included. Cross-sectional
studies are identified as such.
A brief summary of key methods and results is also included.
Table 1
Research Questions
- 1. What behaviors, health signs, and health conditions are associated with
positive underlying health conditions, productivity, health care costs, and
other positive outcomes?
- What behaviors, health signs, and health conditions are associated with
negative underlying health conditions, productivity, health care costs, and
other negative outcomes?
- To what extent do changes in behaviors, health signs, and symptoms occur
after health promotion programs are provided? Are the changes correlational or
causal?
- To what extent do people who change their behaviors, health signs, and
symptoms as a result of being involved in health promotion programs also
change their underlying health conditions, productivity, health care costs,
and other positive outcomes?
- How long lasting are the changes in behaviors, health signs, and symptoms
that result from health promotion programs
- How long lasting are the changes in underlying health conditions,
productivity, health care costs, and other positive outcomes that result from
health promotion programs?
- What are the characteristics of health promotion programs that produce the
behaviors, health signs, and symptoms that produce positive outcomes?
Table 2
Measurement Tools – Standard Categories
- Financial analysis
- Biometric analysis
- Standardized self-report
- Nonstandardized self-report
- Retrospective analysis of data
- Other
Table 3
Rating Internal Validity
All studies given 2-star (**) through 5-star (*****) Research Ratings should
also be assigned an Internal Validity rating, which is a rating of how well the
study was conducted in terms of providing support for its hypotheses. Studies
should be given an Internal Validity rating of Good, Fair, or Poor based on how
well the study meets the criteria listed below for its Study Design category
(i.e., Star Rating).
Good: Study meets all criteria
relevant for the study design.
Fair: Study does
not meet all criteria but has no fatal flaw that invalidates results.
Poor: Study contains fatal flaws
that invalidate results.
| Study Design(s) - # Stars |
Criteria |
| 5 Stars |
- Initial assembly of comparable groups – Adequate randomization,
including concealment (i.e., double-blind or single-blind procedures)
and whether potential confounders were distributed equally among groups
- Maintenance of comparable groups (includes attrition, crossovers,
adherence, contamination)
- Clear definition of interventions
- No important differential loss or no overall high loss to follow-up
- Measurements: equal, reliable, and valid (includes masking of
outcome assessment)
- All important outcomes considered
|
| 4 Stars
|
- Initial assembly of comparable groups – Consideration of potential
confounders across groups with either restriction in subject selection
or measurement with adjustment in the analyses
- Maintenance of comparable groups (includes attrition, crossovers,
adherence, contamination)
- Clear definition of interventions
- No important differential loss or no overall high loss to follow-up
- Measurements: equal, reliable, and valid (includes masking of
outcome assessment)
- All important outcomes considered
|
| 3 Stars
|
- Clear definition of interventions
- No important differential loss or no overall high loss to follow-up
- Measurements: equal, reliable, and valid (includes masking of
outcome assessment)
- All important outcomes considered
|
| 2 Stars
|
- No important differential loss or no overall high loss to follow-up
- Measurements: equal, reliable, and valid (includes masking of
outcome assessment)
- All important outcomes considered
|
Table 4
Research Design Rating Categories
| Star Rating |
Intervention Studies |
| ***** |
Properly conducted study with randomized control group |
| **** |
Properly conducted study with control group but without randomization |
| *** |
Evaluation without control group or randomization |
| |
Non-Intervention Studies |
| ** |
No intervention, but might include long-term or dramatic results from
dissemination of information or medical agent into a population |
| * |
Descriptive, anecdotal, or authoritative evidence |
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