Now available: For greater test security, we now offer a scrambled version of the Wiesen Test of Mechanical Aptitude.

The Wiesen Test of Mechanical Aptitude (WTMA) is a new aptitude test developed to measure mechanical aptitude and reduce impact on females.

In a group of 80 African American and Hispanic Students, there was no significant difference in scores of males and females.

The Wiesen Test of Mechanical Aptitude has 60 questions in a multiple-choice format. Each question uses a diagram with everyday objects to illustrate a mechanical principle or fact. It has been found to be highly correlated with other measures of mechanical aptitude.

Test scores were significantly related to performance as rated by supervisors of 102 employed machine operators. The mean was 63% and standard deviation was 13.88. Test scores were also significantly correlated with performance ratings of 169 employed chemical operators.

When you purchase this product, you purchase online test administration credits. These test credits, once purchased, are placed in your online account and do not expire. Each credit can then be assigned to a test-taker for administration of this test via an internet-connected computer.

System requirements for our Online Testing System are available on our help system.

All tests administered on the Online Testing System are required to be proctored by a representative or third-party agent of the company.

A Getting Started Guide is also available for new users of our Online Testing System.

Sample reports are available after logging in.