Handbook of Management Scales/Ability

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Ability (alpha = 0.96/0.96)[edit]


Three facets of trustworthiness were measured based on scales designed by Mayer/Davis (1999) to assess the ability, benevolence, and integrity of a supervisor. The Likert-type scale ranged from 1 (strongly disagree) to 5 (strongly agree).


Ability reflects concepts such as competence, skills, efficiency, and dedication.


  • My supervisor is very capable of performing his/her job.
  • My supervisor is known to be successful at the things s/he tries to do.
  • My supervisor has a lot of knowledge about the work to be done.
  • I feel very confident about my supervisor’s skills.
  • My supervisor has specific capabilities that can increase our performance.
  • My supervisor is well qualified.



The mean value was above four. Given that a 5-point scale was used, future researchers could slightly adapt the items in order to shift the mean value to the center (e.g., “very successful” rather than “successful”).

Related Scales[edit]