False. A more reliable or accurate source of information or appraisal about one's strengths or weaknesses in one that comprises ratings from different people.
This simply is the act of evaluating one's own performance, abilities, results, progress, or achievements in relation to an agreed or established standard.
Blind spots usually create limits to which one can achieve an objective and accurate self-appraisal.
See the link below for more about Self Appraisal:
https://brainly.com/question/5301322
