What is performance appraisal? Distinguish between 'On-the-job training' and 'Off-the-job training'.

"In order for an employee to feel motivated, three needs must be satisfied; once subsistence need is fulfilled, this will provide motivation for the employee to fulfill the need to relate with other people, and once these two needs aré fulfilled, the need to be creative and perform meaningful work must be satisfied"-Do you agree with this statement? Explain from the standpoint of ERG theory of motivation.