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Table 7 Evaluation of RS and true difference for SDM-Q-9-M scale from pregnancy to birth (N = 150)

From: Midwives’ empathy and shared decision making from women’s perspective - sensitivity of an assessment to compare quality of care in prenatal and obstetric care

SDM-Q-9-M Type of RS Pregnancy Birth    Effect-sizea
Item   \(\overline{\boldsymbol{x}}\) S.D. \(\overline{\boldsymbol{x}}\) S.D. p r Mean difference Observed difference (d) ‘True’ difference (d) RS total
(d)
RS
Recali-bration (d)
RS
Reprioritization (d)
SDM-M-1 reprioritization, uniform recalibration 3.64 1.51 3.88 1.48 .094 .34* 0.24 0.134 −0.184 0.318 0.290 0.028
SDM-M-2   3.73 1.36 3.67 1.54 .646 .35* −0.06 −0.036     
SDM-M-3 reprioritization 4.15 1.32 3.68 1.65 .001 .34* −0.47 −0.270 −0.216 −0.054 −0.022 −0.032
SDM-M-4 non-uniform recalibration 3.95 1.43 3.51 1.62 .003 .34* −0.44 −0.252 −0.240 −0.012 −0.012 n. a.
SDM-M-5   4.23 1.26 3.83 1.45 .001 .40* −0.40 −0.256     
SDM-M-6 uniform recalibration 4.03 1.45 3.73 1.62 .040 .31* −0.30 −0.166 −0.236    0.070 0.070 n. a.
SDM-M-7 uniform recalibration 3.79 1.49 3.29 1.68 .001 .32* −0.50 −0.261 −0.214 −0.047 −0.047 n. a.
SDM-M-8 non-uniform recalibration with intercept influence 3.53 1.60 3.43 1.67 .508 .44* −0.10 −0.058 −0.222    0.164 0.164 n. a.
SDM-M-9 non-uniform recalibration with intercept influence 3.93 1.53 3.41 1.75 .001 .34* −0.52 −0.265 −0.199 −0.067 −0.067 n. a.
Total   3.89 1.27 3.60 1.45 .023 .40* −0.29 −0.190     
  1. aFor effect size calculation, the estimated parameters of the response shifts model CARE-8-M/SDM-Q-9-M were divided by the estimated standard deviation; d = Cohen’s d effect size; Values of 0.2, 0.5, 0.8 indicate “small”, “medium” and “large” effect-sizes; n. a. not applicable. Please note that rounding errors may occur when summing the effect sizes for the true difference and the response shift. * p < .01