| Course | GB700 Doctoral Studies in Business |
|---|---|
| Unit | Unit 4 |
| Paper type | Source evaluation memo |
| Length | About 950 words, 6 pages double-spaced |
| Format | APA 7 student paper |
| School | Purdue University Global |
| Program | MBA |
| Updated | October 2026 |
Free sample paper for GB700 Unit 4
Thirty-One Sources, Five Tiers: A Unit 4 Source Evaluation Memo on Tuition Assistance Evidence
[Student Name]
Purdue University Global
GB700: Doctoral Studies in Business
Unit 4 Source Evaluation Memo
[Instructor Name]
[Date]
The candidate and the source list are composite and illustrative; the studies and frameworks named are real.
Memo
TO: Course instructor FROM: DBA candidate SUBJECT: Evaluating sources for a review of tuition assistance and voluntary turnover
The Rule
A source may support only the kind of claim its design and interests allow. A randomized or well-controlled study can support a causal claim within its setting. A survey of employees can support a claim about what employees say. A vendor's report can support a claim about what the vendor found in its client's data, read with the vendor's interest in mind. Rousseau et al. (2008) argue that management research should be weighed by the quality and fit of its evidence for a given question, and the rule applies that principle source by source.
Five Questions per Source
Each of the 31 sources was asked five questions. Who reviewed it before publication? Who funded or published it? What exactly was measured? Who was sampled? Can the method or data be inspected?
The Five Tiers
Tier 1: Refereed empirical studies, 14 sources. Peer-reviewed analyses of employer records or surveys, such as Benson et al. (2004) and Manchester (2012). These can support claims about associations in the settings studied, and causal claims only where the design allows.
Tier 2: Refereed reviews and meta-analyses, 3 sources. Reviews of turnover research, such as Griffeth et al. (2000), which pooled studies of turnover's predictors. These can support claims about the general pattern of evidence, though none focuses specifically on tuition programs.
Tier 3: Working papers, 6 sources. Studies circulated through university or research series before peer review, including two on prepaid degree programs for hourly workers. These can support provisional claims, labeled as such.
Tier 4: Vendor and consultancy reports, 5 sources. Return-on-investment studies and employee surveys published by education benefits providers and benefits consultancies. These can support claims about what the sponsor found, with the sponsor's interest stated.
Tier 5: Press and executive commentary, 3 sources. News articles and op-eds by executives describing their companies' programs. These can support claims about what leaders believe or announce, not about effects.
A source's tier says what kind of claim it can carry, not whether it is true.
Three Hard Cases
A vendor's return-on-investment study. One education benefits provider published a study of a large client's program, reporting that participants were far less likely to leave than non-participants and that the program returned more than its cost. Reviewed by: no outside referees. Funded by: the vendor, which sells such programs. Measured: turnover among participants and non-participants from the client's records. Sampled: one employer's salaried workforce. Inspectable: methods summarized in two pages, data not available. The study can show that participants in that program left less often. It cannot show the program caused it, because enrollees could be the very employees least likely to quit, the problem Manchester (2012) documented. Tier 4.
A consultancy's employee survey. A benefits consultancy reported that a large share of employees surveyed said they would stay longer with an employer offering tuition benefits. Measured: stated preferences. Surveys of this kind measure wanting, not behavior. Employees say they value many benefits they never use. The survey supports a claim about stated preferences and nothing about turnover. Tier 4.
A working paper on prepaid degrees. A recent working paper from a university research series analyzes a retailer's program that pays tuition in advance for hourly workers, finding lower turnover among participants in the first two years. Reviewed by: not yet refereed. Funded by: university and foundation grants, with the retailer providing data. Measured: turnover from records. Inspectable: methods described in detail, data not public. The paper is directly relevant to the bank's question and is carefully done, but it has not passed review, and its follow-up period ends before most participants graduate. Tier 3, cited with that label.
Claims That Lost Their Footing
Sorting the sources changed what my board memo could say. Its 40 percent figure came from a Tier 4 source and cannot support a causal claim. Its silence about graduates leaving was contradicted by a Tier 1 source. Briner et al. (2009) treat research, practitioner judgment and an organization's own data as complements in evidence-based management. The bank's own records, once analyzed, may prove more useful for its decision than any vendor study, because they describe its own employees.
What Sorting Cost and What It Saved
The exercise took about twelve hours, most of it spent finding who funded the vendor and consultancy reports, which rarely say so on their first page. It removed two figures from my draft, the 40 percent reduction and a claim that most employees would stay longer for education benefits, and it moved one working paper from the margins of my review to its center, because it is the only source that studies the program design my bank is considering. Without the tiers, I would have cited the vendor's figure in my opening paragraph and the working paper in a footnote, which is roughly the reverse of what the evidence supports.
How the Tiers Will Be Used
In the review, claims about cause will rest only on Tier 1 sources with suitable designs. Tier 2 sources will frame the general turnover literature. Tier 3 sources will be cited with their status stated. Tier 4 and Tier 5 sources will appear only where the claim is about what sponsors found or what leaders said, and each will name its sponsor in the sentence that cites it.
References
Benson, G. S., Finegold, D., & Mohrman, S. A. (2004). You paid for the skills, now keep them: Tuition reimbursement and voluntary turnover. Academy of Management Journal, 47(3), 315-331. https://doi.org/10.5465/20159584
Briner, R. B., Denyer, D., & Rousseau, D. M. (2009). Evidence-based management: Concept cleanup time? Academy of Management Perspectives, 23(4), 19-32. https://doi.org/10.5465/amp.23.4.19
Griffeth, R. W., Hom, P. W., & Gaertner, S. (2000). A meta-analysis of antecedents and correlates of employee turnover: Update, moderator tests, and research implications for the next millennium. Journal of Management, 26(3), 463-488. https://doi.org/10.1177/014920630002600305
Manchester, C. F. (2012). General human capital and employee mobility: How tuition reimbursement increases retention through sorting and participation. ILR Review, 65(4), 951-974. https://doi.org/10.1177/001979391206500408
Rousseau, D. M., Manning, J., & Denyer, D. (2008). Evidence in management and organizational science: Assembling the field's full weight of scientific knowledge through syntheses. Academy of Management Annals, 2(1), 475-515. https://doi.org/10.5465/19416520802211651
What the GB700 Unit 4 assignment asks for
In GB700 Unit 4 you evaluate the sources you have gathered and decide what each can support. State the rule you will use to match sources to claims. Apply the same set of questions to every source, covering who reviewed it, who funded or published it, what was measured, who was sampled and whether the method or data can be inspected. Group the sources into tiers based on the answers. Work through the hardest cases in detail, especially sponsored studies, surveys and unpublished research. Explain which claims in your own drafts change as a result. Close by stating how each tier will be used in your review. Most sections expect a memo of about five pages, with an evaluation table and APA 7 citations.
How this GB700 Unit 4 example is built
The memo is addressed to the instructor and opens with its rule, grounded in Rousseau, Manning and Denyer's argument for weighing evidence by quality and fit. Five questions are listed, then five tiers with counts: fourteen refereed empirical studies, three reviews including Griffeth, Hom and Gaertner's meta-analysis, six working papers, five vendor and consultancy reports and three commentaries. The highlighted sentence says a tier describes what a source can carry. Three hard cases are worked through the five questions. A section on claims that lost their footing cites Briner, Denyer and Rousseau, a section reports what the sorting changed in the candidate's draft, and a final section states how each tier will be used.
Where the points sit in the GB700 Unit 4 rubric
GB700 instructors give the most points in this memo for a consistent method. A stated rule matching sources to claims earns credit because it makes every judgment checkable. The same questions asked of every source show the tiers were not assigned by reputation. Hard cases worked in detail, especially sponsored and unpublished research, carry heavy weight, since they test the method where it matters. Distinguishing what a survey measures from what it is often cited for shows sophistication. Reporting which of the writer's own claims changed demonstrates that the evaluation has consequences. A clear statement of how each tier will be used, and APA 7 references for every tier finish the GB700 memo.
GB700 Unit 4 help: mistakes that cost points
Many GB700 source evaluations dismiss all non-refereed material, which throws away sources that can support specific claims, such as what leaders announced. Others accept vendor reports at face value because their figures are precise. A common gap is evaluating sources one by one without a shared set of questions, so the tiers look arbitrary. Writers rarely check who funded a report, though that is often the most important question. Surveys of stated preferences are frequently cited as evidence about behavior. State a rule, ask every source the same questions, examine the hardest cases closely, separate what a survey measured from how it is used and show which of your claims changed. Ask for a free custom source evaluation memo here.
Get a GB700 Unit 4 example written to your instructions
List the sources you have gathered, even roughly, and include the Unit 4 instructions and rubric. Expect a custom memo within 24-48h that places each source in a tier, answers the same questions for every row, and shows which claims each can carry. There is no fee for a first memo, which can sit beside your own draft for comparison. 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 GB700 papers and MBA samples
- GB700 Unit 1: Discussion Board Post
- GB700 Unit 2: Article Critique
- GB700 Unit 3: Literature Search Log
- GB700 Unit 5: Synthesis Matrix
- GB700 Unit 6: Seminar Reflection
- GB700 Unit 7: Scholarly Voice Exercise
- GB700 Unit 8: Research Integrity Analysis
- GB700 Unit 9: Problem Statement Draft
- GB700 Unit 10: Doctoral Position Paper
- GB601 Unit 4: Competitive Positioning Evidence
- GB600 Unit 4: Problem Classification Exercise
- GB590 Unit 4: Governance Failure Case
- GB580 Unit 4: Internal Capabilities Analysis
GB700 Unit 4 questions, answered
How is a working paper different from a refereed article?
A working paper is circulated by its authors, often through a university or research series, before or during peer review. It can be excellent and very current, but reviewers have not yet tested it and its findings may change. Citing one is acceptable at doctoral level when its status is stated and a published version is checked for later.
Does a sponsor's interest make a source unusable?
Not automatically. Interest is a reason to read the method more closely, not a verdict. A study funded by a party that benefits from one answer can still be sound if its design and data are open to inspection. The memo's job is to note the interest plainly and let the design decide how much weight the source receives.
Where can I find a free GB700 Unit 4 sample paper?
The complete GB700 Unit 4 source evaluation memo on this page sorts thirty-one sources on tuition assistance into five tiers using five questions, with three hard cases worked in full.
What can a vendor's study of its own client support?
A claim about what the vendor found in that client's data, cited with the vendor's interest stated. It cannot support a causal claim about the program unless its design rules out other explanations.
How is a stated preference survey different from turnover data?
A survey records what employees say they would do or value. Turnover data record what they actually did. Employees often say they value benefits they never use, so the two can differ widely.