142 Chapter 6 Table 2.1 Effect results of the repeated measures ANOVA on primary and secondary outcomes from baseline (T1) to follow-up (T3). Time F(df) p η2 Primary outcomes Total joint engagement .43(2,33) .657 .025 Supported joint engagement .35(2,33) .709 .021 Secondary outcomes BOSCC 1.96(2,33) .160 .127 ADOS .21(1,28) .651 .007 Vineland Screener 26.68(1,26) <.001 .506 N-CDI words understood 7.27(1,12) .019 .377 N-CDI words said 11.42(1,12) .005 .488 Parental skills Following in 2.51(2,33) .096 .132 Scaffolding 2.66(2,33) .085 .139 Symbol highlighting 2.06(2,33) .144 .111 Caregiver affect .68(2,33) .512 .040 Fluency & connectedness 1.87(2,33) .171 .102 WEMWBS6 1.28(2,15) .305 .146 PSQ 1.22(2,29) .310 .078 6 At T3, one outlier was identified and removed from analyses
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