Question

Interpret the post hoc analysis. The tables show two different versions of the post hoc analysis. Make sure you include all three variables, i.e. Variable X is significantly different from Variable Y but not Z.

                                                                        Weight lost (kg)

(I) Diet	(J) Diet	Mean Difference (I-J)	Std. Error	Sig.
Low calorie	Low fat	.2741	.67188	.912
	Low carbohydrate	-1.8481*	.67188	.020
Low fat	Low calorie	-.2741	.67188	.912
	Low carbohydrate	-2.1222*	.65182	.005
Low carbohydrate	Low calorie	1.8481*	.67188	.020
	Low fat	2.1222*	.65182	.005

Weight lost (kg)
Tukey HSDa,b,c
Diet	N	Subset
		1	2
Low fat	27	3.0259
Low calorie	24	3.3000
Low carbohydrate	27		5.1481

Answer 1

Interpret the post hoc analysis. The tables show two different versions of the post hoc analysis. Make sure you include all three variables, i.e. Variable X is significantly different from Variable Y but not Z.

Note: not three variables, there are 3 groups compared.

Low calorie not significantly different from Low fat ( P=0.912)

Low calorie significantly different from Low carbohydrate ( P=0.020)

Low fat significantly different from Low carbohydrate ( P=0.005)