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. Author manuscript; available in PMC: 2012 Dec 18.
Published in final edited form as: Clin Linguist Phon. 2012 Aug;26(8):728–742. doi: 10.3109/02699206.2012.700679

Table IV.

N (percent) reaching each level of performance fall year 1.

<10% accuracy
Early emerging
Emerging
Mastery
HEC SEC HEC SEC HEC SEC HEC SEC
Present progressive –ing 0 (0%) 0 (0%) 0 (0%) 0 (0%) 10 (31%) 6 (50%) 22 (69%) 6 (50%)
Prepositions in and on 0 (0%) 0 (0%) 0 (0%) 0 (0%) 1 (4%) 0 (0%) 24 (96%) 5 (100%)
Plural –s 0 (0%) 0 (0%) 1 (3%) 1 (14%) 6 (20%) 2 (29%) 23 (77%) 4 (57%)
Irregular past tense 0 (0%) 0 (0%) 2 (8%) 1 (13%) 10 (40%) 5 (62%) 13 (52%) 2 (25%)
Possessive 0 (0%) 0 (0%) 1 (50%) 0 (0%) 0 (0%) 1 (50%) 1 (50%) 1 (50%)
Uncontractible copula 0 (0%) 1 (8%) 4 (13%) 2 (17%) 15 (52%) 5 (50%) 11 (35%) 3 (25%)
Articles a and the 0 (0%) 0 (0%) 0 (0%) 1 (5%) 10 (25%) 3 (15%) 30 (75%) 16 (80%)
Past –ed 0 (0%) 0 (0%) 0 (0%) 0 (0%) 1 (25%) 0 (0%) 3 (75%) 3 (100%)
Third person singular 4 (14%) 5 (39%) 7 (24%) 6 (46%) 14 (48%) 2 (15%) 4 (14%) 0 (0%)
Uncontractible auxiliary 0 (0%) 0 (0%) 0 (0%) 0 (0%) 2 (100%) 1 (100%) 0 (0%) 0 (0%)
Contractible copula 0 (0%) 1 (5%) 4 (10%) 4 (21%) 20 (47%) 11 (58%) 18 (43%) 3 (16%)
Irregular third person singular 1 (17%) 1 (50%) 0 (0%) 0 (0%) 4 (66%) 1 (50%) 1 (17%) 0 (0%)
Contractible auxiliary 0 (0%) 0 (0%) 2 (6%) 3 (23%) 19 (54%) 6 (46%) 14 (40%) 4 (31%)