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Development and validation of a questionnaire for assessing the characteristics of diet and physical activity in patients with type 2 diabetes

2018; Cologio Oficial de Psicólogos del Principado; Volume: 1; Issue: 30 Linguagem: Inglês

10.7334/psicothema2017.269

0214-9915

Rubén Martín‐Payo, Xana González-Méndez, Cristina Papín Cano, Javier Suárez Álvarez,

Obesity, Physical Activity, Diet

Background:The aim ofthis study was to explore the psychometric properties of the Motiva.Diaf-DM2 questionnaire, which assesses adherence to a healthy diet and physical activity in patients with Type 2 Diabetes (T2D).Method: Participants were 206 patients who attended primary care services, with a mean age of 69.63 years (SD = 11.05), with 39.3% of the participants being women.To assess the test-retest reliability of the measure, a random subsample (n = 40) of patients who had another appointment scheduled was selected to fi ll in the questionnaire once again two weeks after the initial administration.Results: The reliability of the scores was found to be appropriate both in terms of internal consistency (α fi rst factor = .756;α second factor = .821)and temporal stability (r fi rst factor = .604;r second factor = .638).The structure of the test is two-dimensional.The scores for the second dimension (adherence to physical activity) are in agreement with the scores for basic psychological needs (r physical activity = .281),resilience (r = .216),and glycated haemoglobin (r = -.182).Conclusions: The Motiva.Diaf-DM2 test was shown to have the appropriate relia-bility and validity to assess adherence to a healthy diet and physical activity in patients diagnosed with T2D.