Relevance to Wexford, not volume or fame, decides the rank of forty-one sources in this GB890 Unit 9 source appraisal, including the widely repeated accident triangle. Searches like "gb 890 unit 9 assignment example", "gb890 unit 9 sample" and "gb890 unit 9 example" land here.
What a finished GB890 Unit 9 source appraisal looks like
A weighting table anchors seven pages. Each of the forty-one sources gets a row scored on four criteria: fit of population, fit of intervention, fit of outcome and strength of design, each rated high, partial or low with a one-line reason. Rows are then grouped into three tiers. Tier one holds six sources, led by Zohar's 2002 intervention and the bakery and packaging-plant behavior-based studies found after the seminar. Tier two holds the meta-analyses and the tenure research, strong on design but distant in setting. Tier three holds sources kept for context only: vendor white papers on safety software, trade surveys and Heinrich's triangle, whose ratio rests on data never published in checkable form. A final section lists [9] sources dropped entirely, each with its reason.
How a GB890 Unit 9 example is structured
The appraisal separates two ideas the earlier units blurred: a source can be strong and irrelevant, or weak and on point. Four criteria keep those apart, with design strength scored independently of fit, so a large meta-analysis can rate high on design and low on population in the same row. Tiers come from the pattern of ratings rather than a summed score, since adding ratings would let a strong design disguise a poor fit. Heinrich receives a paragraph because the candidate's own organization cites it, and dropping it silently would leave a committee member wondering whether the omission was oversight. Vendor papers are kept but labeled for their financial interest in the practice they describe. Dropped sources are listed with reasons so the reduction from the Unit 5 total is traceable, and the appraisal notes which Unit 10 paragraphs each tier will support.
Four criteria, scored apart
Population, intervention, outcome and design each earn their own rating. Keeping design separate lets a rigorous but distant study show both qualities rather than averaging into a misleading middle.
Tiers from patterns, not sums
Sources rated high on at least three fit criteria form tier one regardless of design. Summing ratings was tried and abandoned, because a large correlational study outranked the one intervention closest to Wexford.
The triangle, placed and explained
Heinrich's ratio of minor to major events appears in Wexford's own training materials. The appraisal notes that its underlying data were never published for checking and keeps it only as an example of a belief the project must address.
Vendor papers kept with a label
White papers from safety software firms describe observation programs usefully. Each is kept in tier three with its commercial interest stated, so a reader can weigh the claims knowing who paid for them.
Nine dropped, nine reasons
Sources removed since Unit 5 are listed with the specific cause, such as a school setting, a national campaign with no supervisor element, or a duplicate report of one study.
Where marks go in GB890 Unit 9
Counting sources as evidence of coverage is the habit this GB890 unit exists to break, and appraisals that praise their own volume miss the assignment. Graders check whether design strength has been confused with relevance, since a prestigious meta-analysis on a distant population can carry less weight for Wexford than a small bakery study. Summed scores that hide poor fit behind strong design draw comment. Commonly cited sources whose evidence is weak, Heinrich's triangle being the standard example in safety, need explicit treatment; ignoring them looks like oversight and accepting them looks like credulity. Vendor material presented without its commercial interest is marked down. Criteria shown before verdicts, dropped sources listed with reasons and each tier tied to the chapter it will support are what separate the best appraisals.
Get a GB890 Unit 9 example written to your instructions
Share the source list as it stands, noting beside each entry the job it is meant to do. Add the Unit 9 criteria and rubric. A custom appraisal scoring fit and design separately, tiering from the pattern and explaining every drop is free on a first order and typically returns in 24-48h.
GB890 Unit 9 questions, answered
How do I judge relevance rather than quality?
Ask what the source would have to share with your setting to inform it: population, intervention, outcome, context. Rate those separately from design strength. A randomized trial in a hospital may be excellent research and only partly relevant to a bakery. Keeping the two judgments apart is what lets the appraisal explain its ranking to a skeptical reader.
Should widely cited but weak sources be excluded?
Usually they should be addressed, not silently dropped, especially if your organization or field relies on them. Explaining why a familiar source carries little evidential weight shows judgment a committee values. Heinrich's triangle is a common example in safety; most fields have a similar belief repeated more often than it has been tested.
Can vendor white papers appear in a GB890 appraisal?
They can, labeled for what they are. Vendor material often describes practices in useful detail, but the firm usually sells the product described, which colors its claims. Placing such sources in a context tier with their interest stated lets a reader use the description without mistaking it for independent evidence.