NS499 Unit 8 Evaluation Design for Crew Lunches Example

Course	NS499 Bachelor's Capstone in Nutrition
Unit	Unit 8
Paper type	Evaluation design
Length	About 850 words, 6 pages double-spaced
Format	APA 7 student paper
School	Purdue University Global
Program	BS in Nutrition Science
Updated	October 2026

Free sample paper for NS499 Unit 8

Counting Cold Lunch Days: A Unit 8 Evaluation Design for a Job Site Lunch Program

[Student Name]

Purdue University Global

NS499: Bachelor's Capstone in Nutrition

Unit 8 Evaluation Design

[Instructor Name]

[Date]

Mabry Homes, its crews and the thresholds are composite; the evaluation framework and sources cited are real.

What this part is doingDefining the primary measure in the lead shows the design will be judged on one number chosen before any data exist.

Purpose

The evaluation asks whether the three-session program and lunch kit at Mabry Homes increased how often crew members eat a packed lunch kept cold, whether attendees learned the core food safety rules, and whether the program reached the workers it was designed for. It does not attempt to measure weight, diet quality or illness, which a twelve-week program of thirty minutes in total could not credibly change.

Framework

The design uses three dimensions of the RE-AIM framework: reach, effectiveness and implementation (Glasgow et al., 1999). Adoption and maintenance are outside the scope of one season at one company and are noted as limits.

Objectives Matched to Measures

1. Effectiveness, behavior. Objective: the median number of cold-kept lunch days per five-day work week rises from 1 to 3 by week 12. Measure: the trip card. Collection: the week before Session 1 and week 12. Threshold: a median of 3 or more among workers completing both cards.

2. Effectiveness, knowledge. Objective: at least 80 percent of attendees answer five of six quiz items correctly after Session 1. Measure: a six-item quiz. Collection: before and right after Session 1. Threshold: 80 percent.

3. Effectiveness, practice. Objective: at least 70 percent of checked coolers read 40 degrees or less at lunch. Measure: a thermometer reading. Collection: one day in week 8. Threshold: 70 percent.

4. Reach. Objective: at least 75 percent of the 94 crew members attend Session 1 and sign out a kit. Measure: sign-out sheet. Threshold: 75 percent.

5. Implementation. Objective: all nine session deliveries run as planned. Measure: presenter log. Threshold: nine of nine, with any shortened talk recorded.

Instrument 1: The Trip Card

The card lists the five workdays of one week. For each day, the worker ticks one box: lunch from home, in a cooler with ice; lunch from home, no cooler; bought lunch; or no lunch. It carries a four-digit number the worker chooses and writes on both cards, so before and after cards can be matched without names. Cards are handed out on Monday and collected in a sealed box on Friday.

The trip card asks about one ordinary week rather than a typical week, because people answer what they did more accurately than what they usually do. The twelve-week point was chosen because construction trials have found that diet changes seen at six months often shrink later (Groeneveld et al., 2011), so an early reading describes the program's best case, and the report will say so.

What this part is doingThe highlighted sentence justifies the instrument's design choice, which is the kind of reasoning an evaluation rubric looks for.

Instrument 2: The Quiz

Six items, true or false or multiple choice, in English and Spanish: how long perishable food is safe above 90 degrees, the cold-holding limit, where the cooler should ride, which of four foods needs ice, what to do if the cooler reads 48 degrees at lunch, and how to use frozen water bottles. Items match Session 1's stated objectives and the federal food safety source behind them (Centers for Disease Control and Prevention, 2025). Two crew members who did not take part in the program piloted the quiz for wording.

Instrument 3: The Cooler Reading

On one day in week 8, at lunch, each superintendent asks workers with a kit whether they will open their cooler for a reading. Only those who agree take part. The superintendent records whether the thermometer reads 40 degrees or less, or above, with no name. Refusals are recorded as a count.

Design and Analysis

All crews receive the program, so the comparison is each worker's own week 12 card against the card from the week before Session 1; no untreated group exists. Trip card results are reported as medians and the share of workers whose cold-kept days increased. Quiz results are reported as the percentage meeting the threshold before and after. Cooler readings are reported as a percentage of those checked.

What Could Explain a Change Besides the Program

Without a comparison group, a change could come from the season, a new crew or simply being watched. The report will state these possibilities. Workers who answer both trip cards may be the most motivated, so the report will give the number completing both. Self-report can overstate packing; the cooler readings offer a partial check. Since kits go out to everyone during Session 1, the evaluation measures the package and cannot separate the talks from the kit, a limit noted in the Unit 5 seminar.

Ethics

Participation is voluntary at every step. No instrument carries a name. Results go to the safety manager only as totals. The instructor reviewed the instruments before use.

Reporting

A two-page report goes to the safety manager in September, with each objective, its threshold and whether it was met. A short version in English and Spanish is read at a toolbox talk so the crews hear what their cards showed.

What this part is doingPlanning to report results back to the crews shows respect for the participants, which strengthens the design's ethics.

References

Centers for Disease Control and Prevention. (2025). Preventing food poisoning. https://www.cdc.gov/food-safety/prevention/index.html

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

Groeneveld, I. F., Proper, K. I., van der Beek, A. J., Hildebrandt, V. H., & van Mechelen, W. (2011). Short and long term effects of a lifestyle intervention for construction workers at risk for cardiovascular disease: A randomized controlled trial. BMC Public Health, 11, Article 836. https://doi.org/10.1186/1471-2458-11-836

The Purdue Global NS499 Unit 8 instructions

For the eighth NS499 unit, students design an evaluation for their program. Start with the questions the evaluation will answer and what it will not attempt. Name a framework if it helps organize the dimensions. Match each objective to one measure, an instrument, a collection point and a threshold set in advance. Describe every instrument in enough detail to use, and explain any design choices, such as anonymity or the time period covered. State the design plainly, including whether there is a comparison group. Explain how results will be analyzed and reported. Discuss what besides the program could explain a change. Address voluntary participation and privacy. Plan how results will reach decision makers and participants. Evaluation designs usually take five pages plus instruments in appendices, cited in APA 7.

How this NS499 Unit 8 example is built

The design opens by stating what it asks and what it leaves out, such as weight and illness. RE-AIM supplies three dimensions. A numbered list matches five objectives to measures, collection points and thresholds. The trip card is described in full: five days, four boxes, a self-chosen number for matching and a sealed box. The highlighted sentence explains why the card asks about one ordinary week. A note on timing ties the twelve-week point to trial evidence that diet changes often shrink. The quiz has six bilingual items piloted by two workers, and the cooler reading is voluntary and anonymous. Analysis, alternative explanations, ethics and a two-page report for the safety manager plus a spoken summary for the crews close the design.

NS499 Unit 8 rubric: what earns full points

Evaluation designs are graded on alignment, feasibility and honesty. Each objective must connect to a measure and a threshold, and thresholds set in advance earn credit. Instruments should be described well enough to use. A named framework can organize the work, but it is not a substitute for alignment. The design and its weaknesses should be stated directly. Discussing other explanations for any change shows critical thinking. Ethics and privacy are expected, especially in a workplace. Reporting to both decision makers and participants is often rewarded. Feasibility within the setting matters more than sophistication. Professional writing and APA 7 references finish the rubric.

Common NS499 Unit 8 mistakes, and how to avoid them

Evaluation designs often list measures without thresholds, so no result could count as success or failure. Others choose outcomes a short program cannot change, such as weight. Instruments are named but not described. Thresholds are set after the data, or not at all. The lack of a comparison group goes unmentioned. Self-report is treated as exact. Participants are never told the results. Some designs collect names when an anonymous number would do. When the sessions exist on paper but nothing yet says how they will be judged, and you want a design that matches each objective to a measure, our team can write the evaluation around your project.

Get an NS499 Unit 8 example written to your instructions

Send the objectives from your program plan and a note on how much time participants could realistically give to measurement. Include the Unit 8 prompt and rubric. A first evaluation design comes back free in 24-48h, instruments drafted, thresholds set before any data exists, and the outcomes the program will not claim listed. The paper above is an original model document written by our desk, not a submitted student paper and not an official Purdue University Global document.

More NS499 papers and BS in Nutrition Science samples

NS499 Unit 8 questions, answered

Does an evaluation design need a validated instrument?

It helps when one fits, and many rubrics reward citing validation evidence. When no validated tool matches the objective, a simple purpose-built instrument is acceptable if the design explains why and describes how it was checked, for example by piloting with a few members of the audience. Adapting a validated tool should be disclosed as an adaptation.

Is a before-and-after design strong enough?

For a capstone, usually yes, provided its weaknesses are stated. Without a comparison group, changes could come from other causes such as seasons or schedules. Naming those possibilities and describing how the program would watch for them shows understanding. Reviewers tend to penalize overstated conclusions far more than modest designs.

Can the evaluation be designed without running it?

In most sections, yes. Many capstones plan an evaluation that would run after the term, and the design is graded on its logic, feasibility and alignment. Where the instructions require data, the student collects it with the necessary approvals. A sample shows the structure; any real data and consent stay with the student.

Where can I find a free NS499 Unit 8 sample paper?

You can read a complete NS499 Unit 8 evaluation design on this page, built on cold-kept lunch days with five objectives, three instruments, thresholds and a plan for reporting results.

How are trip cards matched in the NS499 Unit 8 sample without names?

Each worker chooses a four-digit number and writes it on both the before and after cards. The cards can then be paired without anyone's name appearing on either.