Appendix B: Experiment 1 Data Analysis Tables

Table A 1. Experiment 1 Demographic Survey Results (N = 30)

Question		M	SD
General Information
	Age	19.40	1.85
	How many webpages have you built/designed	0.90	1.37
Computer Use
	How many years of computer experience do you have	7.63	3.02
	How many offline hours per week do you currently use a computer	13.20	10.16
	Of those, how many are spent
	playing games	2.57	4.13
	writing papers or doing other schoolwork	4.33	3.24
	programming	0.67	1.77
	other	5.63	6.82
Internet Use
	How many years of Internet/Web experience do you have	5.53	2.01
	How many hours per week do you currently use the Internet/Web	19.12	14.92
	Of those, how many are spent
	using email	3.38	3.03
	downloading software/files	2.97	3.69
	purchasing of goods/services	0.25	0.49
	reading electronic magazines	0.47	1.01
	playing games	1.65	3.71
	chatting/instant messaging	3.30	4.93
	reading news groups	0.43	1.01
	accessing education services	1.57	2.42
	accessing news and current affairs	0.90	1.65
	general "surfing"	2.13	2.03
	searching for information	1.83	1.86
	other	0.23	0.97
Television Use
	How many hours of television/movies do you watch per week	9.08	7.05
	Of those, how many are spent watching
	nature and science shows	1.48	1.72
	daytime soap operas	0.40	1.54
	sitcoms	3.67	3.30
	science fiction	0.27	0.64
	other	3.27	5.91
Reading
	How many hours do you spend reading printed materials per week	9.15	7.18
	Of those, how many are spent reading
	nonfiction related to school	2.10	1.90
	nonfiction not related to school	1.63	2.28
	romance novels	0.98	3.06
	science fiction	0.37	1.03
	news and current affairs	2.43	2.34
	magazines	1.53	1.38
	other	0.10	0.40

Table A 2. Experiment 1 Normality Tests for IEI Scores (N = 30)

Website Congruence	Replicate	Skewness			Kurtosisness			M	SD
		Statistic	95% Confidence Interval		Statistic	95% Confidence Interval
		Statistic	Upper	Lower	Statistic	Upper	Lower
Congruent	1	1.31 *	2.15	0.47	-0.16	1.47	-1.79	3.16	3.53
	2	1.15 *	1.99	0.31	0.79	2.42	-0.84	1.91	2.55
	3	1.42 *	2.26	0.58	1.50	3.13	-0.14	0.89	1.40
	4	1.92 *	2.76	1.08	3.05 *	4.68	1.42	0.62	1.03
	5	1.69 *	2.53	0.86	2.19 *	3.82	0.56	0.32	0.54

Incongruent	1	0.52	1.35	-0.32	-0.15	1.48	-1.79	8.51	3.92
	2	0.62	1.45	-0.22	0.10	1.73	-1.54	4.31	3.20
	3	0.62	1.45	-0.22	-0.34	1.29	-1.98	2.40	2.05
	4	1.31 *	2.15	0.47	1.21	2.84	-0.42	1.62	1.94
	5	1.68 *	2.52	0.84	3.20 *	4.83	1.57	1.01	1.23
* Zero fell outside of the 95% confidence interval for the statistic, indicating that it there was a violation of normality

Table A 3. Experiment 1 Normality Tests for Content SK Scores (N = 30)

Task	Test Session	Skewness			Kurtosisness			M	SD
		Statistic	95% Confidence Interval		Statistic	95% Confidence Interval
		Statistic	Upper	Lower	Statistic	Upper	Lower
Study Outline	Pretest	0.60	1.44	-0.23	-0.11	1.52	-1.75	36.60%	14.80%
	Posttest	-0.82	0.01	-1.66	-0.48	1.15	-2.12	82.20%	20.48%
Explore Website	Pretest	-0.72	0.11	-1.56	0.95	2.58	-0.68	47.23%	12.52%
	Posttest	-2.17 *	-1.34	-3.01	4.61 *	6.24	2.97	91.07%	16.83%
* Zero fell outside of the 95% confidence interval for the statistic, indicating that it there was a violation of normality

Table A 4. Experiment 1 Wilcoxon Signed Ranks Test for Website Task Comparing SK Pretest to Posttest (N = 30)

Source	N	M Rank	Σ Ranks	z	p
Negative Ranks (Posttest < Pretest)	1	3.00	3.00
Positive Ranks (Posttest > Pretest)	29	15.93	462.00
Ties (Posttest = Pretest)	0	0.00	0.00
Total	30			4.85	<.001*
* Significant at a = .05

Table A 5. Experiment 1 Dependent Samples T-Test for Study Session Task Comparing SK Pretest to Posttest (N= 30)

Table A 6. Experiment 1 ANOVA Source Table for IEI Scores (N = 30)

Source	SS	df	MS	F	p
Website Congruence (WC)	360.15	1.00	360.15	42.63	<.001*
WC Error	245.01	29.00	8.45
Replicate (R)	1048.31	2.34	447.41	72.78	<.001*
R Error	417.69	67.95	6.15
WC X R	213.01	2.65	80.36	15.21	<.001*
WC X R Error	406.12	76.87	5.28
Note: Huynh-Feldt adjustment to df was applied for sphericity violations * Significant at a = .05

Table A 7. Experiment 1 One-Way ANOVA Source Tables for IEI Scores (N = 30), Sub-Analyses of Website Congruence

Source	SS	df	MS	F	p
Congruent Condition (CC)	161.00	2.46	65.49	13.58	<.001*
CC Error	343.76	71.29	4.82
Incongruent Condition (IC)	1100.31	2.66	414.27	66.47	<.001*
IC Error	480.05	77.03	6.23
Note: Huynh-Feldt adjustment to df was applied for sphericity violations * Significant when corrected for 2 tests (a = .05/2, or .025)

Table A 8. Experiment 1 Multiple Comparisons of Adjacent Replicates for the Congruent and Incongruent Conditions (N = 30; df = 29)

Website Congruence	Replicates	Paired Differences		t	p
Website Congruence	Replicates	M	SD	t	p
Congruent	1 vs. 2	1.24	2.96	2.30	0.029
	2 vs. 3	1.02	2.59	2.16	0.039
	3 vs. 4	0.27	1.42	1.03	0.313
	4 vs. 5	0.30	0.96	1.71	0.098
Incongruent	1 vs. 2	4.20	3.94	5.83	<.001*
	2 vs. 3	1.91	2.59	4.04	<.001*
	3 vs. 4	0.78	1.59	2.68	0.012
	4 vs. 5	0.61	1.50	2.23	0.034
* Significant when corrected for 8 tests (a = .05/8, or .007)

Table A 9. Experiment 1 Multiple Comparisons of Website Congruence at Each Replicate (N = 30; df = 29)

Replicate	Paired Differences		t	p
Replicate	M	SD	t	p
1	5.36	4.39	6.68	<.001*
2	2.40	4.00	3.29	0.003*
3	1.51	2.16	3.82	0.001*
4	1.00	1.88	2.92	0.007*
5	0.69	1.22	3.10	0.004*
* Significant when corrected for 5 tests (a = .05/5, or .01)

Document Last Updated December 31 1969 19:00:00.

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