TERRA NOVA LANGUAGE STATISTICAL ANALYSIS
NP 2-6 Summary
NP 2-6 Summary	2003	Z- Score	1994	Z- Score	Maximum	Minimum	Effect Size	Difference
Language Total	80.9	0.84	71.5	0.55	99	1	0.29	Performance is much better
Language Mechanics	74.9	0.64	72.7	0.61	99	1	0.03	Not enough to mention
Language Expression	66.3	0.41	67.6	0.44	99	1	0.03	Not enough to mention
NP 7-11 Summary
NP 7-11 Summary	2003	Z- Score	1994	Z- Score	Maximum	Minimum	Effect Size	Difference
Language Total	71.5	0.55	50.6	0.00	99	1	0.55	Performance is substantially better
Language Mechanics	68.1	0.47	50.0	0.00	99	1	0.47	Performance is substantially better
Language Expression	67.3	0.44	50.0	0.00	99	1	0.44	Performance is substantially better
NP 2-6 Summary Average
NP 2-6 Summary Average	1999-03	Z- Score	1994-98	Z- Score	Maximum	Minimum	Effect Size	Difference
Language Total	78.4	0.77	73.3	0.61	99	1	0.16	Better by enough to mention
Language Mechanics	55.3	0.13	58.0	0.20	99	1	-0.07	Not enough to mention
Language Expression	76.6	0.71	75.1	0.67	99	1	0.04	Not enough to mention
NP 7-11 Summary Average
NP 7-11 Summary Average	1999-03	Z- Score	1994-98	Z- Score	Maximum	Minimum	Effect Size	Difference
Language Total	65.0	0.39	56.04	0.15	99	1	0.24	Performance is much better
Language Mechanics	64.5	0.36	54.4	0.10	99	1	0.26	Performance is much better
Language Expression	64.5	0.36	54.7	0.10	99	1	0.26	Performance is much better
NP 2-6 Sci/Math/SS Comparison
NP 2-6 Sci/Math/SS Comparison	Language Total	Z- Score	Sci/Math/SS	Z- Score	Maximum	Minimum	Effect Size	Difference
1994-98 Group Summary	73.3	0.61	77.4	0.74	99	1	-0.13	Worse by enough to mention
1999-03 Group Summary	78.4	0.77	72.5	0.58	99	1	0.19	Better by enough to mention
NP 7-11 Sci/Math/SS Comparison
NP 7-11 Sci/Math/SS Comparison	Language Total	Z- Score	Sci/Math/SS	Z- Score	Maximum	Minimum	Effect Size	Difference
1994-98 Group Summary	56.0	0.15	70.1	0.52	99	1	-0.37	Performance is substantially worse
1999-03 Group Summary	65.0	0.39	70.7	0.52	99	1	-0.13	Worse by enough to mention