ANOVA: Single Factor for the percentage of documents users could make a decision
Groups	Count	Sum	Average	Variance
2 words	18.00	462.00	25.67	165.76
3 words	18.00	406.00	22.56	112.85
Source of Variation	SS	df	MS	F	P-value	F crit
Between Groups	87.11	1.00	87.11	0.63	0.43	4.13
Within Groups	4736.44	34.00	139.31
Total	4823.56	35.00
Groups	Count	Sum	Average	Variance
3 words	18.00	406.00	22.56	112.85
4 words	18.00	374.00	20.78	101.24
Source of Variation	SS	df	MS	F	P-value	F crit
Between Groups	28.44	1.00	28.44	0.27	0.61	4.13
Within Groups	3639.56	34.00	107.05
Total	3668.00	35.00
Groups	Count	Sum	Average	Variance
4 words	18.00	374.00	20.78	101.24
2 words	18.00	462.00	25.67	165.76
Source of Variation	SS	df	MS	F	P-value	F crit
Between Groups	215.11	1.00	215.11	1.61	0.21	4.13
Within Groups	4539.11	34.00	133.50
Total	4754.22	35.00
ANOVA: Single Factor for the Recall
Groups	Count	Sum	Average	Variance
2 words	18.00	12.93	0.72	0.08
3 words	18.00	11.46	0.64	0.06
Source of Variation	SS	df	MS	F	P-value	F crit
Between Groups	0.06	1.00	0.06	0.86	0.36	4.13
Within Groups	2.39	34.00	0.07
Total	2.45	35.00
Groups	Count	Sum	Average	Variance
3 words	18.00	11.46	0.64	0.06
4 words	18.00	13.24	0.74	0.04
Source of Variation	SS	df	MS	F	P-value	F crit
Between Groups	0.09	1.00	0.09	1.68	0.20	4.13
Within Groups	1.77	34.00	0.05
Total	1.86	35.00
Groups	Count	Sum	Average	Variance
4 words	18.00	13.24	0.74	0.04
2 words	18.00	12.93	0.72	0.08
Source of Variation	SS	df	MS	F	P-value	F crit
Between Groups	0.00	1.00	0.00	0.04	0.84	4.13
Within Groups	2.06	34.00	0.06
Total	2.06	35.00