Assessment, Safety, and Professional Practice
Domain 6 - Assessment, Safety, and Professional Practice (title provisional). This domain tests assessment quality, performance assessment, laboratory safety, legal responsibility, and professional ethics. Questions often present an incident or an assessment scenario and ask for the most defensible response.
Core rules and concepts
- Formative assessment guides learning; summative assessment judges achievement; diagnostic assessment identifies prior knowledge.
- Validity means measuring the intended construct; reliability means consistency across raters and occasions. Rubrics need clear criteria and inter-rater moderation.
- Performance assessment uses authentic tasks and explicit criteria; analytic rubrics score dimensions separately, holistic rubrics score the whole.
- Safety uses a hierarchy of controls: elimination, substitution, engineering controls, administrative controls, then PPE. PPE is the last line of defense.
- Legal negligence requires duty, breach, causation, and injury. Documentation, supervision, and trained procedures are evidence of reasonable care.
- Professional practice includes confidentiality, intellectual property respect, continuing professional development, and reflective improvement.
Worked example
A student is injured on a drill press after a guard is removed. A weak response blames the student’s PPE. A stronger analysis applies the hierarchy: the missing guard is an engineering control failure; supervision and lockout procedures are administrative controls; safety glasses are only the final layer. It then checks negligence elements - was there a duty to maintain the guard, was that duty breached, did the breach cause the injury? - and identifies records, training logs, and maintenance schedules as evidence. That reasoning is what the scenario is testing.
Traps that cost marks
- Treating PPE as the first solution rather than the last control.
- Confusing hazard with risk.
- Using assessment only for grading and not for feedback.
- Ignoring inter-rater reliability in performance scoring.
- Failing to document safety training, inspections, and incidents.