NR 612 Week 6 Limitations Analysis Example

Limitations Analysis: Six Conditions a Finding From the Pantry Table Would Need to Travel, Starting With Selection and Ending With a Conclusion Sized to the Tightest Limit

Student Name

College of Nursing, Chamberlain University

NR 612: Population Health Concluding Graduate Experience II

Instructor Name

Month Day, Year

Limitations Analysis: Six Conditions a Finding From the Pantry Table Would Need to Travel, Starting With Selection and Ending With a Conclusion Sized to the Tightest Limit

Limitation 1: Selection

Condition a finding would need: that the people who came to the table resemble the people who did not, in the things that matter for blood pressure.

Evidence: everyone in the results chose to sit down. The invitation reached about 398 person-occasions; about 89 led to a reading from the line. People who came may have been more worried about their pressure, more trusting of strangers or less hurried. Several said a high number on a store machine was what brought them over. Others said they came because they were waiting anyway.

Direction: the people who came were probably more likely than average to have high readings, because worry about a known high reading was a reason to come. The 39 high readings out of 96 may therefore overstate the share in the whole line.

What the finding can still support: that among people who choose to be checked at a pantry, many have readings needing follow-up.

Limitation 2: One Venue, One Morning of the Week

Condition: that the pantry's Wednesday distribution resembles other pantries or other days.

Evidence: one church hall, Wednesday mornings only, in one neighborhood. The pantry also runs a Saturday distribution, which the coordinator says draws more working-age adults.

Direction: uncertain. A Saturday table might reach younger adults with fewer known diagnoses.

Supports: findings about this pantry's Wednesday line.

Limitation 3: The Counting Was Done by an Insider

Condition: that counts were made independently of the person delivering the activity.

Evidence: the student who took the readings also kept the tally, counted chairs and asked the questions. There was no second counter.

Direction: insider counting tends to make programs look better, for example by rounding up the invited count or recording more yes answers to the usefulness question.

Supports: counts of readings and cards, which are simple and hard to inflate; less support for the one-question check.

Limitation 4: No Individual Follow-Up

Condition: that completed clinic visits can be counted reliably.

Evidence: slips depend on people handing them over and front desks keeping them. The free clinic kept none until late October.

Direction: undercount. The six known visits are a minimum.

Limitation 5: Short Duration

Condition: that four weeks is long enough to see what a pantry table can do.

Evidence: readings rose after the second session's changes. A longer run might have reached more people or produced more repeat visits.

Direction: the reach figure may understate what a continuing table would achieve.

Limitation 6: Visual Age Estimate

Condition: that the invited group was correctly counted as adults over 50.

Evidence: the count was based on appearance, not age. Some people counted may have been younger, and some older people may have been missed.

Direction: uncertain, probably small.

A Conclusion Sized to the Tightest Limit

The tightest limits are selection and the absence of individual follow-up. Sized to them, the conclusion is: at one food pantry's Wednesday distribution, a student-run blood pressure table reached about a fifth of adults present each week, found readings needing follow-up in many of those who chose to be checked and connected at least six people to a clinic within weeks. That is the full extent of what the evidence supports.

Green and Glasgow (2006) argue that evaluations should report the conditions under which results were obtained so that others can judge whether they apply to their own setting. This analysis is written for a pantry or a clinic considering the same idea.

Measured Against the Framework

The framework chosen at the planning stage has five dimensions, and this project's evidence touches only some of them (Glasgow et al., 1999). This project can speak to reach, with the limits above, and to implementation, since the ledgers record what was delivered. It cannot speak to effectiveness on blood pressure, and adoption and maintenance depend on whether the pantry continues the table after the student leaves. Naming which dimensions the evidence covers is itself a limitation statement.

Limitation 7: Language of Counting

Condition: that language was recorded consistently. Evidence: language was noted from the conversation, not asked; a bilingual person who spoke English at the table was counted as English. Direction: Spanish speakers may be undercounted slightly.

Limitation 8: The Weather

Condition: that turnout and the outdoor line were similar across sessions. Evidence: 14 October was sunny and many waited outside; 28 October was rainy and almost everyone waited inside. Direction: weather changed who heard the announcement, which affects the invited count and therefore the reach share. A season of sessions, rather than four, would average this out.

Limits That Cancel Out, and Limits That Compound

Selection probably overstates the share of high readings. Insider counting probably flatters the usefulness answers. The undercounted clinic visits understate the project's effect on care. These do not cancel each other; they pull different figures in different directions, which is why each finding is sized separately rather than by an overall adjustment.

How a Pantry Elsewhere Should Read These Results

A pantry with a similar Wednesday line, a hall with waiting chairs and a nearby clinic with weekend hours could reasonably expect similar reach and similar shares of high readings among those who come. A pantry where people collect boxes at a curb and leave would not, because the waiting time that made the table possible would be missing.

The Limit That Matters Most for the Pantry

For the coordinator's decision, the most important limit is the undercounted clinic visits. If the true number of visits was much higher than six, the table did more than the briefing can claim. A health worker who follows people up would remove this limit in a second round.

What Would Reduce These Limits

A second counter. A Spanish-speaking volunteer at the table from the first day. A Saturday session for comparison. Consent-based follow-up calls, if the pantry agreed. A partnership with a community health worker who could follow people to their clinic visits, as programs with stronger effects have done (Brownstein et al., 2007).

Limits Not Raised

Small numbers are not listed as a limitation, because every project this size has them and the conclusion above is already sized to the counts.

References

Brownstein, J. N., Chowdhury, F. M., Norris, S. L., Horsley, T., Jack, L., Jr., Zhang, X., & Satterfield, D. (2007). Effectiveness of community health workers in the care of people with hypertension. American Journal of Preventive Medicine, 32(5), 435-447. https://doi.org/10.1016/j.amepre.2007.01.011

Glasgow, R. E., Vogt, T. M., & Boles, S. M. (1999). Evaluating the public health impact of health promotion interventions: The RE-AIM framework. American Journal of Public Health, 89(9), 1322-1327. https://doi.org/10.2105/AJPH.89.9.1322

Green, L. W., & Glasgow, R. E. (2006). Evaluating the relevance, generalization, and applicability of research: Issues in external validation and translation methodology. Evaluation & the Health Professions, 29(1), 126-153. https://doi.org/10.1177/0163278705284445