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Wiesen Test of Mechanical Aptitude–PAR Edition

Joel P. Wiesen, PhD

Assesses mechanical aptitude
Paper and pencil
Age range:
18 years to 65 years
30 minutes
Qualification level:
A degree, certificate, or license to practice in a health care profession or occupation, including (but not limited to) the following: medicine, neurology, nursing, occupational therapy and other allied health care professions, physician's assistants, psychiatry, social work; plus appropriate training and experience in the ethical administration, scoring, and interpretation of clinical behavioral assessment instruments. Certain health care providers may be eligible to purchase selected "B" and "C" level instruments within their area of expertise. Specifically, relevant supervised clinical experience using tests (i.e., internship, residency, etc.) in combination with formal coursework ( i.e., Tests and Measurement, Individual Assessment, or equivalent) qualifies a health care provider to purchase certain restricted products. Any PAR Customer already qualified to purchase a "B" or "C" level product, is also qualified to purchase an "S" level product. If you are not already qualified to purchase a "B"or "C" level product from PAR, please download and complete the special Qualification Form for Medical and Allied Health Professionals. (You will need Adobe Acrobat to view.) Close

The WTMA is a paper-and-pencil test of mechanical aptitude designed for use alone or as part of a personnel selection battery in a variety of employment and training settings (e.g., manufacturing, industrial), as well as for academic research.

Suitable for use in vocational, staffing, or employment programs

  • Designed to minimize academic, gender, and ethnic bias, the WTMA questions do not require familiarity with objects or events encountered in specific locales.
  • Multiple-choice questions, which are written at a 6th-grade reading level, include simple drawings that address broad mechanical/physical concepts (e.g., basic machines, movement, gravity/center of gravity, basic electricity/electronics, transfer of heat, basic physical properties) as they are seen in everyday objects and situations. The brief questions involve the function and/or use, size, weight, shape, and appearance of common physical objects, tools, and devices.

Note: Stopwatch required for administration.