| Course | HLTH 8815 Gerontology & Healthy Aging |
|---|---|
| Week | Week 7 |
| Paper type | Measurement memo |
| Length | About 750 words, 4 pages |
| Format | Memo, APA 7 citations |
| School | Walden University |
| Program | PhD in Public Health |
| Updated | October 2026 |
Free sample paper for HLTH 8815 Week 7
Memorandum
To: Regional Aging Planning Council (composite)
From: Data and Evaluation Staff
Date: Month Day, Year
Re: Choosing disability measures before the council's next five-year report
Purpose
The council plans to report whether the region's older residents are living longer with disability or with less of it. The answer depends partly on how the survey asks about disability. This memo separates capacity from performance, compares three kinds of survey item, and shows how each would change a reading of the compression of morbidity.
The Question Behind the Report
Fries (1980) proposed that if the onset of chronic illness and disability could be postponed more than death, illness would be compressed into a shorter period at the end of life. The opposite possibility, expansion of morbidity, is that longer lives bring more years with disability. Crimmins and Beltrán-Sánchez (2011) reviewed U.S. trends and found that the evidence did not support a recent compression of morbidity when morbidity was defined as major disease and loss of mobility functioning; the length of life lived with disease and with mobility loss increased between 1998 and 2008. Their conclusion was tied to those particular definitions.
Capacity and Performance
A capacity item asks what a person can do, usually in a standard setting: "Can you walk a quarter of a mile without help?" A performance item asks what a person actually does in daily life: "In the past month, did you walk a quarter of a mile or more?" A help or difficulty item asks whether the person has difficulty with or receives help for an activity, such as bathing or shopping. Verbrugge and Jette (1994) distinguished functional limitations, restrictions in basic actions, from disability, difficulty doing activities in one's environment. Capacity items track limitations more closely; help and difficulty items track disability, which depends on the environment and on available supports.
How Each Item Would Change the Reading
The third row deserves attention. If the region expands home care, more residents may report receiving help with bathing. A help-based measure would then show rising disability, even though residents are better supported. A capacity measure would not register the improvement at all. Only a performance measure, or a combination, would show that residents are doing more despite unchanged capacity.
Table 1
Three Kinds of Item and What Each Would Show About Compression of Morbidity
| Item type | Example | Sensitive to | Likely reading if the region added services and accessible housing | |
|---|---|---|---|
| Capacity | "Can you climb ten steps without resting?" | Changes in the body | Little change; capacity may still decline with age | |
| Performance | "Did you leave your home on most days last week?" | Body, environment, motivation | Improvement if environments became more supportive | |
| Help or difficulty | "Do you receive help bathing?" | Body, environment, available help | Could rise if services expand, because more people receive help | |
Example items are illustrative; national surveys use variants of each type.
Evidence That Measures Disagree
National trends illustrate the problem. Freedman et al. (2013) updated trends from five national surveys and found that limitations in personal care and household activities may have continued to decline after 2000 for those 85 and older but were generally flat for those 65 to 84, with modest increases among people aged 55 to 64. Differences across surveys in wording, population covered and whether institutional residents were included affected the conclusions.
A Worked Example for the Region
Suppose the region's survey shows that the share of residents aged 75 and older who receive help bathing rose from 9% to 11% over five years, while the share who left their homes on most days rose from 70% to 76%. Read alone, the help item suggests growing disability. Read with the performance item, the picture is different: more residents are getting help, and more are out in the community. If a capacity item on climbing steps stayed flat, the most likely reading is that capacity did not change, environments and services improved, and the region reached more people who needed help. The figures in this example are illustrative, but the pattern shows why the council should never report one kind of item alone.
Recommendations
1. Report at least one capacity measure and one performance measure, and present them together.
2. Treat help items as measures of service reach as well as of disability, and say so in the report.
3. Keep the same items across survey waves, since changes in wording can create false trends.
4. State clearly whether nursing home residents are included.
References
Crimmins, E. M., & Beltrán-Sánchez, H. (2011). Mortality and morbidity trends: Is there compression of morbidity? The Journals of Gerontology: Series B, 66B(1), 75-86. https://doi.org/10.1093/geronb/gbq088
Freedman, V. A., Spillman, B. C., Andreski, P. M., Cornman, J. C., Crimmins, E. M., Kramarow, E., Lubitz, J., Martin, L. G., Merkin, S. S., Schoeni, R. F., Seeman, T. E., & Waidmann, T. A. (2013). Trends in late-life activity limitations in the United States: An update from five national surveys. Demography, 50(2), 661-671. https://doi.org/10.1007/s13524-012-0167-z
Fries, J. F. (1980). Aging, natural death, and the compression of morbidity. New England Journal of Medicine, 303(3), 130-135. https://doi.org/10.1056/NEJM198007173030304
Verbrugge, L. M., & Jette, A. M. (1994). The disablement process. Social Science & Medicine, 38(1), 1-14. https://doi.org/10.1016/0277-9536(94)90294-1
Reading the HLTH 8815 Week 7 instructions
Students write a memo advising decision-makers on how to measure disability or function in older adults. Faculty expect the memo to distinguish types of measures, such as capacity, performance and help or difficulty items, and to explain what each is sensitive to. The strongest memos show how the choice of measure would change a substantive conclusion, such as whether morbidity is being compressed. Evidence from national trend studies that compare surveys strengthens the argument. A worked example, clearly labeled if illustrative, helps decision-makers see how readings diverge. Recommendations should be specific about which measures to report and how to present them, and should address consistency across survey waves and the populations included.
Inside the HLTH 8815 Week 7 example
The council's question sits in the first lines, next to the memo's purpose. A section states Fries's compression hypothesis and reports Crimmins and Beltrán-Sánchez's review of U.S. trends. A section defines capacity, performance and help items and cites Verbrugge and Jette on limitation and disability. Table 1 compares the three item types by example, sensitivity and likely reading if services expanded. A paragraph explains why help items could rise as support improves. A section cites Freedman and colleagues on diverging trends across five national surveys. A worked example with illustrative figures shows the three readings side by side. Four recommendations cover pairing measures, interpreting help items, keeping wording stable and stating whether nursing home residents are included.
Where the marks sit in the HLTH 8815 Week 7 rubric
Measurement memos score well when they show that the choice of item changes the answer. Defining capacity and performance correctly is necessary but not sufficient. The memo should demonstrate, through a table or worked example, how each kind of item would read the same change differently. Accurate use of the compression literature and of national trend comparisons supports the argument. Graders value the insight that a help item can rise because services improved. Recommendations should be concrete and should guard against false trends created by changing wording or coverage. Memo form, clear headings and labeled illustrative figures make the document usable by a planning council.
HLTH 8815 Week 7 help: mistakes that cost marks
Measurement memos often define terms and recommend using validated instruments. That does not tell decision-makers how the choice affects their conclusions, which is the only thing a council needs from staff. To write a stronger memo, describe each type of item with an example. Ask what each one is sensitive to: the body, the environment or the services available. Show how a change in the region, such as more home care, would move each measure. Use a worked example to make the divergence concrete. Cite national work that compares surveys. Recommend pairing measures and keeping wording consistent from one wave to the next, and say plainly who the survey leaves out. A measurement memo for the council or agency your course describes can be drafted.
Get a HLTH 8815 Week 7 example written to your instructions
Name the population, the survey or the measures your prompt concerns, and attach the rubric. The memo returned keeps capacity and performance apart, compares wordings in a table with each one's likely lean, and states Fries's hypothesis without trend figures. Its planning council is fictional. A first memo is free, and turnaround runs 24 to 48 hours.
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HLTH 8815 Week 7 questions, answered
How do capacity and performance differ?
In the ICF, capacity is what a person can do in a standardized environment, and performance is what they actually do in everyday surroundings, with whatever help, devices and obstacles are present. A person may have the capacity to cook and still not do so because the kitchen is unsafe. That pair is how the sample explains why survey items disagree about the same population.
Does the memo say disability is being compressed?
No. It explains that the answer depends on how disability is defined, and it declines to report a trend it cannot source. Fries proposed that disability could be pushed into a shorter period at the end of life if its onset were delayed faster than lifespans grew. Whether that is happening is an empirical question your memo can frame without settling.
Where can I find a free HLTH 8815 Week 7 sample paper?
The complete Week 7 measurement memo is published here, showing how capacity, performance and help items would each change a planning council's reading of the compression of morbidity, with four references.
Why might expanding home care make disability look worse?
A help item counts people who receive help with tasks such as bathing. If more residents receive help because services expanded, that measure rises even though residents are better supported, which is why the memo pairs it with a performance item.
Is morbidity being compressed in the United States?
Crimmins and Beltrán-Sánchez found that the evidence did not support recent compression when morbidity was defined as major disease and loss of mobility functioning. Conclusions depend on the definition and the survey used.