A description and psychometric validation is offered of the evaluation instrument COMPASS-Ar, conceived to check the level of competence achieved by future teachers—after participating in the ITINER-Ar Project (2018-19)—in the collaborative design of augmented didactic itineraries (ADIs) using augmented reality. This instrument—assessed by experts—consists of 30 items to measure the acquired didactic, digital, socio-collaborative, and creative competences involved in ADI development on the basis of an analytical rubric—created ad hoc and validated by means of the Delphi method—which specifies the requirements of each score through a (1-5) Likert-type scale. After evaluating a sample of 322 subjects, the assessment of reliability provided a Cronbach's alpha = .979. Construct validity was tested using factor analysis. Both the Kaiser-Meyer-Olkin test and Bartlett's sphericity test revealed that the instrument under study has a unidimensional nature. It can be concluded that this is a valid and reliable instrument.
Bridges of joy – a case study of the collaborative design learning process of the university teacher students
