title: Development and psychometric validation of the 'Parent Perspective University of Rhode Island Change Assessment-Short' (PURICA-S) Questionnaire for the application in parents of children with overweight and obesity.
abstract: High prevalence rates of childhood obesity urgently call for improved effectiveness of intervention programmes for affected children and their families. One promising attempt can be seen in tailoring interventions according to the motivational stages of parents as 'agents of change' for their children. Evidence from other behavioural contexts (eg, addiction) clearly shows the superiority of motivational-stage dependent tailored (behavioural) interventions. For the time-efficient assessment of motivational stages of change, this study aims to develop and psychometrically validate a 'Parent Perspective Version' of the existing University of Rhode Island Change Assessment-Short, an instrument assessing the motivational stages based on the theoretical fundamentals of the Transtheoretical Model of Psychotherapy.
  
  
  
  In a multistep Delphi procedure, involving experts from the study context, the original items of the University of Rhode Island Change Assessment-Short Questionnaire will be transformed from the 'self-perspective' ('I am having a problem') to the parent perspective ('my child is having a problem'). Following item adaptation, the new version of the questionnaire will be psychometrically validated in a cohort of N=300 parents with overweight or obese children. Parents will be recruited within a multicentre and multisite approach involving private paediatric practices, specialised outpatient clinics as well as inpatient and rehabilitation sites. Analyses will include confirmatory factor analyses, internal consistencies (reliability) as well as convergent and criterion validity. Convergent validity will be analysed using subscales of the HAKEMP-90 Questionnaire, an instrument which has been shown to differentiate between 'state' and 'action' orientation of individuals.
  
  
  
  This study has been granted ethics committee approval by the University of Tuebingen (number 644/2014BO2). The results of this study will be released to the participating study centres and will be submitted to peer-reviewed journals and presented at international conferences.
  
  
  
  VfD_PURICA-S_15_003607.
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, Medical University Hospital Tuebingen, Tuebingen, Germany.
authors.forename: Florian
authors.initials: F
authors.lastname: Junne
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, Medical University Hospital Tuebingen, Tuebingen, Germany.
authors.forename: Katrin
authors.identifier: 0000-0002-6111-4082
authors.initials: K
authors.lastname: Ziser
authors.affiliation: Centre for Psychological Psychotherapy, University of Heidelberg, Heidelberg, Germany.
authors.forename: Johannes
authors.initials: J
authors.lastname: Mander
authors.affiliation: Medical Faculty, Institute of Clinical Epidemiology and Applied Biometry, University of Tuebingen, Tuebingen, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Martus
authors.affiliation: Department of Endocrinology and Diabetology, Medical University Hospital Ulm, Ulm, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Denzer
authors.affiliation: Department of Pediatric Nutrition Medicine, Vestische Hospital for Children and Adolescents Datteln, University of Witten/Herdecke, Witten, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Reinehr
authors.affiliation: Department of Endocrinology and Diabetology, Medical University Hospital Ulm, Ulm, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Wabitsch
authors.affiliation: Pedatric Obesity Outpatient Department, Medical University Hospital Charité Berlin, Berlin, Germany.
authors.forename: Susanna
authors.initials: S
authors.lastname: Wiegand
authors.affiliation: Department of Child and Adolescence Psychiatry, Medical University Hospital Tuebingen, Tuebingen, Germany.
authors.forename: Tobias
authors.initials: T
authors.lastname: Renner
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, Medical University Hospital Tuebingen, Tuebingen, Germany.
authors.forename: Katrin E
authors.initials: KE
authors.lastname: Giel
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, Medical University Hospital Tuebingen, Tuebingen, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Teufel
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, Medical University Hospital Tuebingen, Tuebingen, Germany.
authors.forename: Stephan
authors.initials: S
authors.lastname: Zipfel
authors.affiliation: Public Health Department of Stuttgart, Department of Pediatrics, Dental Health Care, Health Promotion and Social Services, Stuttgart, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Ehehalt
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003697:Delphi Technique; D005163:Factor Analysis, Statistical; D005260:Female; D005858:Germany; D006801:Humans; D008297:Male; D010290:Parents / Q000523:psychology*; D063766:Pediatric Obesity / Q000628:therapy*; D011594:Psychometrics; D015203:Reproducibility of Results; D012107:Research Design; D011795:Surveys and Questionnaires / Q000592:standards*
keywords: children; development; motivation; obesity; psychometric validation; questionnaire