Objective: to develop and validate instruments to identify health professionals' beliefs related to the presence of the child's family in invasive procedures and in cardiopulmonary resuscitation.
Method: study based on Psychometrics to conduct the theoretical, empirical and analytical stages, developed in a neonatal unit of a university hospital. The two instruments were constructed based on the literature and applied to 96 health professionals.
Results: the Cronbach's Alpha of the instrument related to the professionals' beliefson invasive procedures was 0.863 and the instrument on cardiopulmonary resuscitation was 0.882. In both instruments, the tests performed indicated a correlation between the items. From the factorial analysis, four factors were generated: (1) benefits of the presence of the family; (2) impairment for professional practice; (3) strategies for the inclusion of the family; and (4) limitation of learning and decision making by the professional.
Conclusion: the instruments analyzed obtained a good internal consistency and are indicators of the professionals' beliefs with the potential to evaluate the quality of family care in this context.