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. Author manuscript; available in PMC: 2023 Jul 25.
Published in final edited form as: J Psychiatr Res. 2020 Nov 4;132:215–222. doi: 10.1016/j.jpsychires.2020.11.004

Table 2. Structural equation modelling.

Model DF χ2 diff Pr (>Chisq) AIC CFI TLI RMSEA 95%CI RMSEA Path
FIRST MODEL 90 - - 44816.52 0.653 0.538 0.158 0.158 - 0.158 -
2 89 187.68 *** 44624.60 0.706 0.603 0.146 0.146 - 0.147 comp_rsfr ~~ supps_lackpersevrnce
3 88 23.463 *** 44611.65 0.712 0.607 0.146 0.145 - 0.146 comp_rsfr ~~ bis8_total
4 87 122.89 *** 44488.21 0.748 0.653 0.137 0.137 - 0.137 bis8_total ~~ supps_lackpremed
5 67 147.12 *** 39466.08 0.735 0.640 0.143 0.142 - 0.143 Compulsivity =~ comp_rsfr + comp_arss
6 66 63.713 *** 39395.04 0.759 0.667 0.137 0.137 - 0.137 OBQ_perfec_intoluncert ~~ supps_lackpersevrnce
7 22 342.93 *** 28183.77 0.792 0.659 0.164 0.164 - 0.164 Impulsivity =~ exogenous
8 16 284.52 *** 23472.67 0.971 0.949 0.062 0.062 - 0.063 ius_total ~
9 8 11.157 0.19 17743.64 0.970 0.944 0.072 0.071 - 0.072 SS =~ bsss_total + supps_sensseek

Legend: Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 ; DF = Degrees of freedom; χ2 diff = chi square difference; Pr(>Chisq) = p-value for the chi square test, tests compare consecutive models; AIC = Akaike information criterion; CFI = comparative fit index; TLI = Tucker–Lewis index; RMSEA = root mean square error of approximation; 95%CI RMSEA = 95% confidence intervals for RMSEA; Path = step change for each model. All results are averages and 95%CI intervals from 1000 iteration boot strap estimates of model fit.