Which group of indicators is most suitable to measure the effect of an ergonomic intervention?

Correct answer: Pain complaints errors absenteeism and work speed

The direct answer is B: pain complaints, errors, absenteeism, and work speed. An ergonomic intervention changes the fit between people, tools, tasks, and the workplace, so its effect should be judged with measurable health and performance outcomes. Compare records before and after the change: are workers reporting less pain, making fewer errors, being absent less often, and completing work at a suitable speed? Option B contains indicators from both worker health and work results, so it is the strongest group. Option A, wall colour and curtain style, may affect appearance but does not directly measure ergonomic success. Option C, names and office address, identifies people or places but measures no outcome. Option D, chair price and brand, describes purchasing details, not whether the chair improved comfort or performance. A costly branded item may still be poorly adjusted. Memory cue: evaluate ergonomics by effects, not decoration or price.