International Breastfeeding Journal

Table 7 Analysis of variance assessing the SS scale

From: Efficacy of a breastfeeding support education program for nurses and midwives: a randomized controlled trial

			SS	df	MS	F	p
SS Scale Score ^a	Within-group factor	Time Time×Program	749.678 400.011	1.779 1.779	421.516 224.911	15.587 8.317	0.01 0.01
	*MSe*		2789.64	103.155	27.043
	Between-group factor	Program	366.939	1	366.936	1.505	0.23
	*MSe*		14137.789	58	243.755
≤ 5 years ^a	Within-group factor	Time Time×Program	398.749 300.222	1.361 1.361	293.008 220.609	5.746 4.326	0.02 0.04
	*MSe*		1179.78	23.135	50.995
	Between-group factor	Program	310.860	1	310.860	0.93	0.35
	*MSe*		5674.58	17	333.795
≥ 6 years ^b	Within-group factor	Time Time×Program	336.654 99.678	2 2	168.327 49.839	8.466 2.507	0.01 0.09
	*MSe*		1550.826	78	19.882
	Between-group factor	Program	123.524	1	123.524	0.597	0.44
	*MSe*		8071.826	39	206.970

SBS Self-efficacy of breastfeeding support, SS Social skills in nursing interactions with mothers, K-S Knowledge and skills necessary for breastfeeding support for LPIs, 5 or fewer years 5 or fewer years of maternity-ward experience, 6 or more years 6 or more years of maternity-ward experience, SS Sum of Squares, df degrees of freedom, MS Mean squares, F ANOVA test statistic, p p-value
^a Analysis of variance with assumption of sphericity
^b Analysis of variance with Greenhouse‒Geisser

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ISSN: 1746-4358

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