Appendix E.

Within-Stratum Differences in Achievement Outcomes among Language Minority Students

	ESL Placement		No ESL Placement
Stratum	N	Proportion	N	Proportion	Difference
Math College Preparatory Enrollment
0	1	1.00	469	0.50	0.50
1	6	0.00	465	0.38	−0.38
2	5	0.14	230	0.24	−0.10
3	10	0.39	225	0.28	0.10
4	15	0.37	142	0.26	0.11
5	10	0.08	68	0.12	−0.04
6	38	0.20	120	0.22	−0.02
7	30	0.17	48	0.35	−0.18
8	90	0.17	66	0.16	0.00
9	138	0.18	19	0.05	0.13
10	150	0.24	7	0.30	−0.06
Total	493	0.20	1859	0.33	−0.13
Science College Preparatory Enrollment
0	1	1.00	469	0.58	0.42
1	6	0.52	465	0.45	0.07
2	5	0.73	230	0.40	0.33
3	10	0.36	225	0.39	−0.03
4	15	0.29	142	0.40	−0.11
5	10	0.05	68	0.22	−0.17
6	38	0.11	120	0.38	−0.27
7	30	0.27	48	0.32	−0.05
8	90	0.26	66	0.17	0.09
9	138	0.20	19	0.35	−0.15
10	150	0.35	7	0.57	−0.22
Total	493	0.27	1859	0.43	−0.16
Social Science College Preparatory Enrollment
0	1	1.00	469	0.34	0.66
1	6	0.37	465	0.31	0.06
2	5	0.12	230	0.21	−0.09
3	10	0.13	225	0.19	−0.06
4	15	0.16	142	0.16	0.00
5	10	0.08	68	0.09	−0.01
6	38	0.07	120	0.18	−0.11
7	30	0.07	48	0.13	−0.06
8	90	0.12	66	0.10	0.02
9	138	0.10	19	0.05	0.05
10	150	0.06	7	0.16	−0.10
Total	493	0.09	1859	0.24	−0.15

	ESL Placement			No ESL Placement
Stratum	N	M	SD	N	M	SD	Difference
Math IRT Scores
0	1	64.16		469	52.56	13.06	11.60
1	6	24.95	2.77	465	47.21	14.97	−22.26
2	5	34.93	10.68	230	41.62	15.01	−6.69
3	10	40.25	19.87	225	41.76	14.29	−1.51
4	15	46.89	15.10	142	41.41	13.16	5.48
5	10	37.06	11.08	68	35.08	14.29	1.98
6	38	38.04	9.63	120	40.04	13.10	−2.00
7	30	36.46	16.11	48	40.64	14.87	−4.18
8	90	39.55	13.38	66	35.28	13.21	4.27
9	138	36.86	14.34	19	29.10	14.98	7.76
10	150	37.22	16.46	7	36.81	14.99	0.41
Total	493	37.83	14.75	1859	44.48	14.88	−6.65
Cumulative GPA
0	1	2.82		469	2.81	0.66	0.01
1	6	1.82	0.52	465	2.59	0.76	−0.77
2	5	2.03	0.47	230	2.33	0.8	−0.30
3	10	2.36	0.71	225	2.45	0.74	−0.09
4	15	1.90	0.99	142	2.47	0.73	−0.57
5	10	2.37	0.81	68	1.98	0.89	0.39
6	38	1.76	0.84	120	2.42	0.77	−0.66
7	30	2.47	0.57	48	2.30	1.24	0.17
8	90	2.29	0.79	66	2.26	0.72	0.03
9	138	2.35	0.81	19	2.05	0.79	0.30
10	150	2.43	0.90	7	2.98	0.77	−0.55
Total	493	2.31	0.84	1859	2.50	0.78	−0.19