Attributes:

NDPOQ-A and NDPOQ-P were developed using the multistage iterative process (including the significant input from patients and health care providers in their conceptual underpinning and content generation).

NDPOQ-A and NDPOQ-P are short and simple to administer amongst the intended populations as they were designed as a patient self-completion measure.

Both questionnaires have received positive acceptance in the focus groups and cognitive interview debriefing sessions.

The readability level is suitable for a 12 year old.

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NDPOQ was developed in 4 comprehensive stages:

Comprised a session with the dietetic Service at a NHS Trust to elicit the key concepts considered as important indicators of their advice and support in the management of the condition/disease for their current case load. This was followed by a focus group comprising current and previous users of the service to identify which aspects of the service were important to them and what benefits they had in the management of their disease/condition.

Was development of the draft versions of the two versions of the measure; the version for adults (NDPOQ-A) and the version aimed at parents of child patients (NDPOQ-P), both based on findings from stage one. This was followed by a further focus group of patients and parents to review the draft measure, formulate further items, and generally refine the measure. There were also cognitive-debriefing interviews with patients to finalize the wording and format the measure.

Was field-tested in which suitable respondents completed the measure.

Assess the psychometric properties of the measures for reliability, validity and acceptability in target populations.

The NDPOQ-A and NDOPQ-P have satisfactory psychometric properties supporting their validity and reliability, further research is recommended to further validate the measures.

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Scoring the NDPOQ provides a psychometrically-based total raw score ranging from 0-60 (where 0= poor outcomes, 60=positive outcomes). In addition scores can be calibrated so that 50 is the average score or norm. This norm-based score allows comparison across disease, groups, age and sex as well specialities etc.

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The NSPOQ is to date validated for pen and paper completion. Careful migration to a digital delivery format (for example screen based device) can be authorised. Please contact us for advice.

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