The validity of educational measurement of characteristics modelled in the structure of oppositional pairs is determined, among other things, on matching the rating scale to the properties of the operationalised variables. 270 people participated in the study of this issue. The results revealed the significance of the type of rating scale and its length in determining the results of characteristics measurement.
The article presents the results of validation studies on the Inventory of Attitudes Towards Social Innovation. The measurement was conducted on public institution employees and members of non-governmental organizations, i.e., people who, due to their professional or social roles, participate in resolving local social problems. The study was conducted using cross-validation. Factor structure, internal consistency of the test and subscales, and stability over time were assessed using the test-retest method. The results indicate a three-factor structure of the phenomenon, as well as satisfactory psychometric properties of the inventory.
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