These assessments vary considerably with respect to content, scale, instructions, validity, and concordance.
For example, suitable scale instructions, an appropriate number of items, adequate display format, appropriate item redaction (all items should be simple, clear, specific, ensure the variability of response, remain unbiased, etc)., among other parameters (DeVellis 2003; Pasquali 2010).
The synthetized version of the SCS-MS was then evaluated by a group of three middle-school students, which where oriented to verify the adequacy of the scale instructions, items readability and response options.
Before the warm-up, the RPE scale was explained to the subjects according to the scale instructions [ 21].
The substitution of missing values is based on the scale instructions given by the developers of the questionnaire [ 9, 27].
In general, patients were able to understand and interpret the FACIT-fatigue scale instructions, items, response options, and recall period without any problems.
For incomplete questionnaires substitution of missing values is based on the scale instructions given by the developers of the questionnaire [ 23, 24].
For incomplete questionnaires, the missing values were replaced with the mean value of the answered questions of the respondent when at least 6 out of 8 items had valid response, which is based on the scale instructions given by the developers of the questionnaire.
For incomplete questionnaires, the missing values were replaced with the mean value of the answered questions of the respondent when at least 6 out of 8 items had valid response, which is based on the scale instructions given by the developers of the questionnair [ 20, 21].
During visit 1 patients will be assigned to one of the groups and will receive training how to install and use TM devices at home (BP monitor and scale), instructions on daily measurements and data collection; will be trained how to work with SALUDA EPR and SALUDA e-learning programme.
