CPSI common mistakes
CPSI · Understand the traps and how to avoid them.
Answering hazard-identification items by naming the hazard (e.g., 'sharp edge') without stating the injury mechanism or who is at risk, when the item asks for the failure mode.
Candidates memorize hazard labels and stop at the noun, treating identification as a naming task rather than a risk-assessment task.
What to do instead
For each hazard, practice writing three things: the hazard, the mechanism of injury (fall, entrapment, laceration, strangulation, collision), and the population most exposed (preschool vs. school-age). Drill until the mechanism comes automatically.
Applying a single age-group assumption to every item instead of first establishing the intended user age group and then judging the scenario against that group's criteria.
Many standards and design criteria differ between preschool-age and school-age users, and candidates default to whichever group they picture most readily.
What to do instead
Before answering any scenario, explicitly note the age group stated or implied. If the stem does not state it, look for equipment dimensions or use context that reveals it, and answer within that group's criteria.
Treating published guidelines as legally binding minimums and treating local code as merely advisory, producing answers that misstate which requirement controls.
Candidates conflate voluntary consensus guidelines with enforceable regulation because both are studied from the same handbook-style sources.
What to do instead
Build a two-column mental table: 'voluntary guidance' vs. 'adopted code/regulation,' and for each topic note which document is enforceable in the jurisdiction. On items asking 'must' vs. 'should,' let the verb in the stem drive the choice.
Judging use zones and falling-space adequacy by eyeballing the diagram description rather than measuring the required clearance in every direction, including entries, exits, and moving-equipment swing paths.
Candidates check the obvious front and side clearances and forget that use zones extend fully around equipment and are larger for certain motion types.
What to do instead
Adopt a routine: for every layout item, trace the use-zone perimeter completely around the equipment, then check overlaps between adjacent structures and check that no obstacle (bench, tree, fence, path) intrudes. Practice on written layout descriptions, not pictures.
Selecting a surfacing material by name alone (e.g., 'wood chips' or 'rubber') without verifying that depth, installation, and maintenance match the required fall height and the equipment's critical height.
Material names feel like the answer, so candidates skip the quantitative comparison between the equipment's fall height and the surfacing's rated performance.
What to do instead
For every surfacing item, state the fall height, state the surfacing's rated critical height at the installed depth, and compare. If the stem omits one value, that omission is usually the point of the question.
Overlooking entrapment and entanglement criteria by checking only obvious openings, missing partially bounded openings, angles, and protrusions that can catch clothing or a helmet.
Entrapment hazards are geometric and less visually dramatic than falls, so candidates under-scan for them and answer from general safety intuition.
What to do instead
Memorize the categories of entrapment (fully bounded, partially bounded, angles, protrusions, suspended hazards) and run each category as a checklist against every equipment description, asking 'could a head, limb, or clothing fastening pass partway and not withdraw?'
Confusing inspection types, answering a routine-inspection scenario with the frequency or depth of a comprehensive/audit-level inspection, or vice versa.
The inspection hierarchy is learned as a list rather than as a decision rule, so candidates pick the 'most thorough' answer regardless of the stem's context.
What to do instead
Anchor each inspection level to its purpose, who performs it, and its typical frequency, then classify the stem by trigger (daily use, scheduled interval, post-incident, annual audit) before choosing.
Recommending removal or closure of equipment as the default corrective action for every deficiency, instead of matching the corrective action to the severity and type of hazard.
Candidates equate 'safest' with 'most drastic,' and exam items reward the proportionate, standards-based response.
What to do instead
Practice ranking corrective actions by severity: immediate removal/closure for imminent life-safety hazards, repair or retrofit for correctable deficiencies, and documentation/monitoring for low-severity findings. Justify the rank by the hazard's potential for serious injury.
Ignoring maintenance and deterioration as a cause of injury in scenario items, attributing the failure only to design or installation.
Design and equipment facts are easier to study, so wear, corrosion, loose fasteners, surfacing displacement, and missing components get underweighted.
What to do instead
For every incident scenario, run a cause checklist: design, installation, supervision/use, and maintenance/deterioration. If the stem mentions age, weather, heavy use, or prior repairs, weight maintenance heavily.
Answering supervision and injury-prevention items by prescribing 'more supervision' or 'educate the children' instead of specifying an environmental or engineering control.
Supervision feels like the safe, humane answer, and candidates default to it when the engineering fix is less familiar.
What to do instead
Apply the hierarchy of controls to every prevention item: eliminate the hazard, then engineer it out (design, surfacing, barriers), then administrative measures (rules, supervision, signage). Choose the highest-level control the stem permits, and reserve supervision for residual risk.