A cohort study for the development and validation of a reflective inventory to quantify diagnostic reasoning skills in optometry practice

Table 5 External reliability of the DTI-OS

Score	Maximum possible value	Means (± SDs)		ICC average (upper and lower bounds, 95% CI)
Score	Maximum possible value	First administration Experts (n = 32)	Second administration Experts (n = 27)	ICC average (upper and lower bounds, 95% CI)
DTI-OS Total	72	55.87 (± 6.89)	56.22 (± 6.81)	0.922 (0.83–0.96)*
DTI-OS SM	36	28.43 (± 3.67)	28.66 (± 4.06)	0.90 (0.79–0.96)*
DTI-OS FT	36	27.44 (± 4.14)	27.85 (± 3.51)	0.82 (0.61–0.92)*
DTI-O Total	246	182.71 (±19.84)	183.24 (±18.49)	0.93 (0.85–0.97)
DTI-O SM	120	74.71 (±6.90)	71.04 (±8.05)	0.87 (0.59–0.95)
DTI-O FT	126	70.05 (±10.18)	73.31 (±9.55)	0.84 (0.34–0.95)

*Significant at P < .001
Abbreviations: DTI-O Diagnostic Thinking Inventory for Optometry, DTI-OS Diagnostic Thinking Inventory for Optometry Short, FT flexibility in thinking, SM structured memory

ISSN: 1472-6920