Elaine supervises 30 sanitation engineers. she fills out a form that rates such factors as loyalty, cooperation, attendance, and job knowledge. she checks off the answer for each item, which usually has 5 to 10 options. "job knowledge is information pertinent to the job that an individual should have for satisfactory job performance" is one of the performance factors. the choices, one of which she must check, are "poorly informed about work duties, occasionally unsatisfactory, can answer most questions about the job, understands all phases of the job, has complete mastery of all phases of the job." which method is she using?
a) graphic rating scale
b) bars
c) critical incident
d) checklist appraisal
e) forced-choice comparison