Evaluating an employee can create conflict and disagreement among staff and manager if not handled fairly and objectively. To avoid this, nurse Hannah needs to adhere on the evaluation principle which includes the following EXCEPT in evaluating performance, there should be enough time to observe employee's behavior the evaluation must be based on the behavioral standards of performance which the position requires. the goals and objectives are clearly presented to the employee; performance evaluation is based on these... the evaluation conference should be scheduled and must be conducted at a convenient time for the rater and the evaluatee