If a manager considers one employee at a time and circles a number/word to signify the degree to which that employee demonstrates a particular trait, he/she is using a: Group of answer choices

graphic rating scale        

Explanation:

A graphic rating scale is described as one of the different types of methods involved in "performance appraisal". In the given method, an individual's behaviors or traits that are considered as significant for "effective performance" are being "listed-out" and then every employee is being rated against the given traits. These ratings would help different employers to 'quantify' or 'measure' the behavior displayed or represented by its employees.

The correct answer for the question above is the graphic rating scale.

answer; no individual buyer or seller has any significant impact on the market price;