Validity varied extensively and there was a widespread lack of information regarding measurement of change over time and patient burden .
According to the evaluation criteria , there was adequate support for two tools .
The present study aims to identify the range of  eating behavior self- assessment tools reported in the adult bariatric surgery literature and evaluate the measurement properties of these tools using pre-established criteria .
The Master Questionnaire: preliminary report on an obesity assessment device.
Behavioral obesity research ers are increasingly concerned with thorough assessment of obesity . The present report describes the preliminary testing and refinement of the Master Question naire ( MQ ) , a true-false scale developed expressly for use in obesity research . It was initially divided into four subscales : Spouse Support , Energy Balance Habits , Cognitive Factors , and Energy Balance Knowledge , and was intended for use as an outcome measure and as a predictor of change in obesity status . Its stability , internal consistency , sensitivity to treatment-related change , and predictive validity were examined . Test-retest reliability and sensitivity to treatment-related change were each found to be acceptable for three out of four subscales . Two subscales , Energy Balance Knowledge and Cognitive Factors , predicted outcome . The major weakness of the subscales was a lack of unidimensionality which would limit their utility . Cluster and factor analyses were used to develop five new subscales with acceptable levels of internal consistency . While some additional development and validation is still needed , the available evidence suggests that we have the nucleus of a strong assessment tool for obesity research
Validity varied extensively and there was a widespread lack of information regarding measurement of change over time and patient burden .
According to the evaluation criteria , there was adequate support for two tools .
The present study aims to identify the range of  eating behavior self- assessment tools reported in the adult bariatric surgery literature and evaluate the measurement properties of these tools using pre-established criteria .