The TMA instrument is a mental ability test that helps measure an individual's ability to learn new skills quickly, adjust to new situations, understand complex or subtle relationships, and be flexible in thinking. This instrument helps assess an individual's capacity to learn and understand the requirements of the job.

Percentile norms are listed by the two sub scores (quantitative and linguistic) and the total score for the following job classifications:

• Manager
• Bank and insurance manager
• Human resource manager
• Sales manager
• Supervisor
• Computer programmer
• Sales representative
• General clerical
• College student
• Unskilled/skilled
• Cosmetology student
• Accounting
• Customer service
• Chief financial officer
• Marketing
• Company president

Validation studies have been conducted and scores were correlated with job performance in various companies for the following jobs:

• Assistant manager
• Bank teller
• Clerical worker
• Computer operator
• Computer programmer
• Manager (retail store)
• Salesperson (retail store)
• Sales representative
• Sales supervisor
• Supervisor (insurance)