| Course | PUBH 8211 Research Methods for Public Health |
|---|---|
| Week | Week 5 |
| Paper type | Instrument note brief |
| Length | About 610 words, 5 pages |
| Format | APA 7 student paper |
| School | Walden University |
| Program | PhD in Public Health |
| Updated | October 2026 |
Free sample paper for PUBH 8211 Week 5
Borrowed Evidence, Borrowed Obligations: An Instrument Note Justifying the International Outcome Inventory for Hearing Aids in a Study of Rural Older Adults and Listing What Adopting It Commits the Study To
Student Name
Walden University
PUBH 8211: Research Methods for Public Health
Instructor Name
Month Day, Year
Borrowed Evidence, Borrowed Obligations: An Instrument Note Justifying the International Outcome Inventory for Hearing Aids in a Study of Rural Older Adults and Listing What Adopting It Commits the Study To
Why Use an Existing Instrument
The study needs a measure of hearing aid use and outcomes for older hearing aid users in the invented Tall Pines region. Writing new questions would mean starting without evidence that they measure what they claim to. Adopting an instrument others have tested buys that evidence. It also buys obligations, since the evidence applies only to the instrument as tested.
The Instrument
The International Outcome Inventory for Hearing Aids is a seven-item questionnaire covering daily use, benefit, residual activity limitations, satisfaction, residual participation restrictions, impact on others and quality of life, each answered on a five-point scale. Its English version was evaluated in a sample of hearing aid users, and its authors reported psychometric properties, including a two-factor structure and reliability information, that support its use (Cox & Alexander, 2002). The first item asks how many hours a day the person wears the hearing aid, which matches the study's main outcome.
Why This Instrument
Three reasons support it. It is short, which matters for older adults completing a survey by phone. Its first item measures daily use directly. And it has been widely used, so results can be compared with other studies. A review of non-use found that perceived benefit and satisfaction were among the most important reasons people stop wearing hearing aids (McCormack & Fortnum, 2013); the inventory measures both, so the survey can test whether they are associated with low use in this region.
Obligations the Study Accepts
Table 1
What Adopting the Inventory Commits the Study To
| Obligation | What the study will do | |
|---|---|
| Use items as published | No rewording, no dropped or added items within the instrument | |
| Use published response options | Five-point scales exactly as written | |
| Report all items | All seven items reported, not only those that show associations | |
| Score as intended | Item-level reporting, plus any subscale scoring as the developers describe | |
| Respect the validated mode | Phone administration noted as a difference from self-completion, and tested in a pilot | |
| Acknowledge limits | Self-report of hours worn, which may overstate use, reported as a limitation | |
Note. Prepared for the instrument section of the methods chapter.
A Known Weakness and a Partial Remedy
Self-reported hours of use may overstate actual wear, since people may report what they think they should. Many modern hearing aids record wear time in device memory, called data logging. With consent, the study will collect data-logged hours for respondents whose aids record them, which allows a check of the self-reported item in a subset. Differences will be reported, not hidden.
Piloting
Before enrollment, the inventory and added items will be read by phone to six older adults fitted with hearing aids at a clinic outside the study region. The pilot will check whether the items are understood when read aloud, how long the call takes and whether any participant needs the mail version. Results will guide procedures, not change the inventory's wording.
Additional Items Outside the Instrument
The study adds a small number of items outside the inventory, on cost paid, distance to the clinic and whether the person lives alone, because the survey's associations need them. These are placed after the inventory, so they cannot change how its items are read.
Why the Note Matters for Integration
The inventory's daily-use item defines who is eligible for interviews. Using it consistently ensures the interview sample matches the survey's definition of non-use, which is essential for later integration of the two strands (Fetters et al., 2013).
References
Cox, R. M., & Alexander, G. C. (2002). The International Outcome Inventory for Hearing Aids (IOI-HA): Psychometric properties of the English version. International Journal of Audiology, 41(1), 30-35. https://doi.org/10.3109/14992020209101309
Fetters, M. D., Curry, L. A., & Creswell, J. W. (2013). Achieving integration in mixed methods designs: Principles and practices. Health Services Research, 48(6 Pt 2), 2134-2156. https://doi.org/10.1111/1475-6773.12117
McCormack, A., & Fortnum, H. (2013). Why do people fitted with hearing aids not wear them? International Journal of Audiology, 52(5), 360-368. https://doi.org/10.3109/14992027.2013.769066
PUBH 8211 Week 5 instructions, in plain terms
Instrument assignments in research methods courses ask students to select a measure for a key variable and justify the choice. Prompts typically require describing the instrument, summarizing evidence of its reliability and validity, explaining why it fits the population and study, and identifying limitations and how they will be handled. Some instructors also ask what using the instrument obliges the researcher to do. A brief with a table of obligations is a useful format. Instructors reward notes that cite the instrument's development or validation source, connect it directly to the research question and address mode, population and scoring issues, rather than citing the instrument's popularity alone. Some sections require the full citation of the validation study and a copy of the instrument in an appendix.
How the PUBH 8211 Week 5 example is put together
The brief explains why an existing instrument is preferred and frames it as both evidence and obligation. Sections describe the inventory and its validation, give three reasons for choosing it and list obligations in a table. A section addresses the weakness of self-reported hours with data logging. Further sections explain where added items go, describe a pilot with six older adults and link the instrument's daily-use item to interview selection. The obligations table translates abstract fidelity rules into specific actions the study will take. The pilot section limits itself to procedures and leaves the inventory's wording untouched.
Where the marks sit in the PUBH 8211 Week 5 rubric
Graders assess the accuracy of the instrument description, the quality of the justification and attention to limitations and fidelity. Credit is highest when the student cites the validation source and explains how the instrument's evidence applies to the study's population and mode. A list of obligations shows awareness that changing an instrument undermines its evidence. Planning a check on a known weakness demonstrates rigor. Instrument sources listed with version and scoring details strengthen the justification. Notes that place added items after the validated instrument, to avoid changing how its items are read, show careful design. Graders value acknowledgment that phone administration differs from self-completion and a plan to test it. Linking the instrument to later interview selection demonstrates integration thinking.
PUBH 8211 Week 5 help from the desk
Students often choose an instrument because others used it. Find the paper that evaluated it and note who it was tested with and how it was administered. Compare that with your study. List what you must keep unchanged. Plan how you will handle any difference, such as phone administration. Name the instrument's main weakness and how you will check it. If you need help justifying a measure for your study, send the instrument and your population. Keep a copy of the instrument exactly as published in your files. Note every difference between your use and the validation study. Report all items in your results, not just the interesting ones.
Get a PUBH 8211 Week 5 example written to your instructions
Name the instruments your study plans to use, published or homemade, and send them with the Week 5 note instructions and rubric. A note that attributes every piece of borrowed evidence, handles translation and lists the obligations each instrument creates reaches you in 24-48h; your first costs nothing. The study it supports is fictional, and its travel items were written for illustration.
More PUBH 8211 papers and PhD in Public Health samples
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- PUBH 8211 Week 2: Question Memo
- PUBH 8211 Week 3: Design Rationale
- PUBH 8211 Week 4: Sampling Plan
- PUBH 8211 Week 6: Procedures Draft
- PUBH 8211 Week 7: Analysis Plan
- PUBH 8211 Week 8: Trustworthiness Memo
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- PUBH 8211 Week 10: Peer Critique
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PUBH 8211 Week 5 questions, answered
Where can I find a free PUBH 8211 Week 5 sample paper?
The Week 5 instrument note appears above in full, justifying a hearing aid outcome inventory.
What does the International Outcome Inventory for Hearing Aids measure?
Daily use, benefit, residual limitations, satisfaction, participation, impact on others and quality of life, in seven items.
Why can't the items be reworded?
Validation evidence applies to the instrument as tested; changing it removes that evidence.
What weakness does self-reported use have?
People may report more hours than they actually wear their hearing aids.
How will the study check self-reported use?
By comparing it with data-logged wear time from hearing aids that record it.