The useful starting point
Compare recurring findings with their observation coverage, and treat a shared pattern as a question to investigate rather than a proven cause.
Read the fictional monthly summary
In month A, the learner reviews two receiving-area visits and finds one recorded route obstruction. In month B, the learner reviews eight visits and finds three recorded obstructions. The draft headline says, “The problem tripled because staff stopped caring.” It makes both a comparison and a causal claim.
The raw finding count did rise from one to three. However, the amount of observation also changed, and the records contain no evidence about staff motivation. Those are two separate reasons to improve the headline.
Put the count beside its coverage
CCOHS discusses using inspection information to examine trends. This exercise begins with a coverage question: how many visits, areas and periods produced the recorded findings? A count detached from those details can mislead a reader about what changed.
Here, the simple fractions are one finding in two visits and three in eight visits. They describe this small set only. Different visit timing, duration or selection could affect the comparison, and the figures do not establish the true frequency of obstructions outside the observed periods.
Build the recurrence review table
| Month | Visits reviewed | Recorded findings | Known coverage limit |
|---|---|---|---|
| A | 2 | 1 | Both early-period visits |
| B | 8 | 3 | Mix of early and late visits |
A supported statement is that the condition was recorded in both months and the observation coverage differed. The table does not establish an improving or worsening underlying rate, nor identify the reason for recurrence.
Ask what is shared across the recurring entries
The learner next compares location, activity and timing for the four records. Suppose three occurred during larger deliveries. That is a useful pattern to investigate. It does not prove that delivery size alone caused the obstruction; other conditions may differ at the same time.
A stronger study question is, “What distinguishes the larger-delivery cases from the other observed visits?” That invites examination of the process and conditions. “Who stopped caring?” presumes a motive the file does not establish and can distract from the available evidence.
Write an honest summary with a next question
Try: “Route obstruction was recorded in both months. Month B included more visits and different periods, so raw counts alone do not establish a worsening trend. Several entries coincide with larger deliveries; further review should examine the conditions shared by those cases.”
For practice, add a third month with zero recorded findings but no receiving-area visits. Explain why zero observations of the condition is not evidence that it disappeared. A useful recurrence analysis keeps the count, coverage and causal explanation separate until the evidence connects them.
Check your reasoning.
A month has zero recorded receiving-area findings, but no receiving-area visits occurred. Does that demonstrate the issue was eliminated?
Open the suggested reasoning
No. The area was not observed in that month's supplied records. Zero recorded findings without coverage does not establish that the condition disappeared.
An original learning exercise from NCSO Prep, not an official exam question.
Sources and scope
Source review: . The examples and study methods are NCSO Prep editorial material. Official requirements and workplace decisions must be checked against the applicable current source.
- CCOHS: Effective Workplace Inspections
Inspection-program context. Reviewed October 18, 2026.
- CCOHS: Leading and Lagging Indicators
Background for interpreting safety measures. Reviewed October 18, 2026.