Alexandra Nikodijevic, Richard Moulding, Jeromy Anglim, Frederick Aardema, Maja Nedeljkovic
Fear of self, doubt and obsessive compulsive symptoms
Journal of behavior therapy and experimental psychiatry
patients diabetes frequently need perform certain numeric tasks interpreting blood glucose levels however psychometrically sound instrument objectively measuring diabetesspecific health numeracy study aimed develop new objective diabetes health numeracy test dhnt evaluate psychometric properties adult patients type 2 diabetes instrument development study conducted initial items evaluated six experts content validity pilot test convenience sample 257 participants type 2 diabetes recruited 2 university hospitals may september 2018 structural convergent criteria validity internal consistency dhnt binary item responses evaluated data analyzed using exploratory factor analysis rasch analysis tetrachoric correlation spearmans correlation kuderrichardson20 formula exploratory factor analysis yielded singlefactor solution comprising seven items rasch analysis confirmed item fit single factor identified item difficulty parameters moderate values convergent criterion validity instrument demonstrated diabetes knowledge subjective diabetes numeracy respectively acceptable internal consistency kuderrichardson20 coefficient 81 dhnt demonstrated satisfactory psychometric properties instrument moderate levels item difficulty may lower cognitive burden developed instrument applied practice tailor education diabetes selfmanagement per levels health numeracy specific patients