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. 2019;90(1):56–67. doi: 10.23750/abm.v90i1.7647

Table 1.

Reliability and stability analysis

N(%) = number of observations with percentage; Mean (SD) = Mean with Standard Deviation of the normalised and raw data for Reliability and Stability analysis, respectively; Cronbach’s α = Cronbach’s α is item delated; Rho = Spearman’s coefficient; p-value = p-value of the correlation test.

Knowledge questions Subjects (%) Reliability Analysis Stability Analysis
Mean (SD) Cronbach’s α Mean (SD) at T0 Mean (SD) at T1 Rho p-value
Q1
No
very little
just a few points
enough
Yes
50 (25.51%)
56 (28.57%)
44 (22.45%)
36 (18.37%)
10 (5.1%)
0.36 (0.29) 0.63 1.49(1.20) 1.56(1.27) 0.90 <0.0001
Q3
no one
One
Two
three
Four
54 (27.55%)
32 (16.33%)
30 (15.31%)
32 (16.33%)
48 (24.49%)
0.49 (0.39) 0.59 1.94(1.56) 2.01(1.55) 0.91 <0.0001
Q4
No
Yes
I don’t know
24 (12.24%)
46 (23.47%)
126 (64.29%)
0.75 (0.36) 0.59 1.52(0.71) 1.53(0.68) 0.94 <0.0001
Q5
Yes
I don’t know No
76 (38.78%)
42 (21.43%)
78 (39.8%)
0.51 (0.44) 0.66 1.01(0.89) 0.96(0.85) 0.88 <0.0001
Q7
no critical
methodology
I don’t know
critical methodology
58 (29.9%)
62 (31.96%)
74 (38.14%)
0.53 (0.41) 0.71 1.08(0.83) 0.86(0.80) 0.33 0.0011
Q8
no one
One
Two
three
Four
2 (1.05%)
96 (50.53%)
52 (27.37%)
32 (16.84%)
8 (4.21%)
0.43 (0.23) 0.64 1.73(0.90) 1.68(0.91) 0.74 <0.0001
Other questions
Q2
I don’t know No
Very little
Enough
Yes
102 (52.04%)
2 (1.02%)
14 (7.14%)
64 (32.65%)
14 (7.14%)
1.42(1.55) 1.53(1.52) 0.88 <0.0001
Q6
I don’t know
the CDM is in favour
of the patient
the CDM is in favour
of the doctor
balanced
112 (57.14%)
24 (12.24%)
2 (1.02%)
58 (29.59%)
1.03(1.34) 0.97(1.29) 0.99 <0.0001
Q9
I don’t know
No
Yes
8 (4.08%)
88 (44.9%)
100 (51.02%)
1.47(0.58) 1.45(0.58) 0.95 <0.0001
Q10
Never
Rarely
sometime
very often
6 (6.12%)
16 (16.33%)
58 (59.18%)
18 (18.37%)
1.77(0.87) 1.70(0.89) 0.85 <0.0001
Q11
Never confronted
Self-decision
Help request
Self-decision with
help request
70 (35.71%)
32 (16.33%)
56 (28.57%)
38 (19.39%)
1.32(1.15) 1.31(1.19) 0.91 <0.0001
Q12
Never
Rarely
Sometime
Very often
56 (28.57%)
54 (27.55%)
74 (37.76%)
12 (6.12%)
1.21(0.93) 1.29(0.92) 0.86 <0.0001