Background:
People management constitutes a fundamental pillar of an organization. It is crucial for organizational success and the creation of efficient teams. The tool described here, along with its construction and psychometric properties, aims to explore aspects of management, focusing primarily on the so-called personal activity styles employed by leaders.

Participants and procedure:
The study group consisted of 660 individuals. The mean length of work experience was over 8 years. The average number of employees reporting to the respondents was high, at nearly 294 individuals. The study was conducted at the turn of 2024/2025 and was mainly carried out on an individual basis, although some respondents completed it in groups in the training rooms of the respective organization. The entire procedure lasted approximately 20-25 minutes. Respondents were also asked to complete a short set of additional research instruments, including a demographic questionnaire, a personality-trait assessment, and a measure of social competence.

Results:
It can be concluded that the Personal Activity Styles Questionnaire is a reliable instrument with satisfactory psychometric properties. Most of the Cronbach’s α values exceeded the recommended threshold of 0.8. Based on the consistency between the distribution of test items and the theoretical assumptions, the questionnaire demonstrated evidence of internal validity. The data confirm significant associations between the results of the PROKOS and scores on the NEO-FFI and the questionnaire.

Conclusions:
The presented Personal Activity Styles Questionnaire is a reliable and valid tool that enables measurement of the intensity of personal activity styles, with a particular emphasis on social relations.