English to Spanish Other Human Resources empresa de coaching

en el texto que habla sobre una empresa de coaching y consultoría aparece lo siguiente:

How can we assess people’s behaviours more objectively? How to avoid being misled by own beliefs and assumptions? Searching for an answer, we developed our 4 Level Scale (4LS) evaluation which offers a systematic approach to analyse people’s behaviour with a new correctness.

Benefits for companies:
 The behavioural practice of selected groups of employees can be evaluated
 The practices of different groups of employees can be compared by using a single grid
 We can define a repertoire of specific competencies especially for your company
 Different questionnaires for leaders, managers and salespeople


no sé cómo poner "single grid" espero que puedan ayudarme es muy urgente gracias