The selection of these questions and their operationalization were based on the distribution of the prevalence data in the older population of our sample, as well as on the existent set of Brazilian studies [ 5, 19] that have used similar questions to classify different levels of functional disability.
Our operationalization, however, was based in part on low- and high-risk US drinking definitions 18, 24 and supported by correlational analyses with EtG concentration (0.53, CI = 0.46, 0.59 for hair; 0.57, CI = 0.50, 0.63 for fingernails).
There are also other limitations of the present study related to sleep measurement issues: First, the operationalization of OSA was based on a brief self-report questionnaire.
The operationalization of adversity was based on the questionnaires completed by the participants at age 16, 21, 30, and 43 years.
Our operationalization of social vulnerability was based on self-report data rather than on objectively defined social factors.
The operationalization was done based on prior studies of creativity conducted by Page (2007); Frumkin and Fox (2011) and Amabile and Pillemer (2012).
While all three methods are based on strong conceptualization, their operationalization is a work in progress.
We conclude, that, even in times of more sophisticated operationalization of diagnostic criteria, the interdisciplinary assessment has to be based on an individual evaluation of all neurological and psychosocial findings.
To understand why the subjective experience of acting freely does not correspond to the objective operationalization of free action, we examined which responses were reported to be based on free choices.
These instruments are based on a unidimensional and a multidimensional conceptualization and operationalization of frailty status.
