. 2009 Jan;3(1):202–209. doi: 10.1177/193229680900300124

Table 1.

Measures of Literacy or Numeracy Specific to Diabetes

Study	Measure	Sample	Psychometric properties	Number of items	Response format and administration time
Diamond⁶	Nutritional Literacy Scale	341 primary care patients	internal consistency (Chronbach alpha 0.84); construct validity (Pearson correlation 0.61)	32	written; 10 min to complete
Huizinga et al.⁷	Diabetes Numeracy Test	398 persons with diabetes	internal reliability (Kuder–Richardson	43 or a shortened version with 15	written or verbally administered; 33 min to complete the long version
Morris et al.⁸	Single Item Literacy Screener	999 persons with diabetes	sensitivity 54%; specificity 83%	1	verbally administered; less than 1 min to complete
Nath et al.⁹	Literacy Assessment for Diabetes	203 persons	concurrent validity (correlation coefficient of 0.81 with the WRAT3 and 0.90 with the REALM); test–retest reliability interclass correlation coefficient of reliability of 0.86 (p < .0001)).	3 lists of words, 60 words total	read and spoken; 3 min or less to complete
Rothman et al.¹⁰	Spoken Knowledge in Low Literacy Patients with Diabetes	217 persons with type 2 diabetes	internal reliability (Kuder–Richardson coefficient 0.72)	10	verbally administered; less than 10 min to complete