Walnut Valley Unified: english

The shaded band is this district's normal range. If nothing about how it works changes, nearly every future year should land inside it. Zero means the typical student just meets the state standard. The small numbers under the years are how many students were tested.

Step 1 · Each year's result

For each grade tested, take the average (mean) scale score from the California Department of Education's results file, and subtract the lowest score that counts as "Standard Met" for that grade. That is the grade's distance from standard. Weight each grade by its share of the students tested, then add the grades up. Grades where the state hides the average because ten or fewer students tested are left out entirely.

2015 from sb_ca2015_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	39,914	2458.1	− 2432	26.1	× 882 / 7529	3.1
4	39,916	2512.3	− 2473	39.3	× 868 / 7529	4.5
5	39,918	2549.6	− 2502	47.6	× 891 / 7529	5.6
6	39,920	2575.7	− 2531	44.7	× 1012 / 7529	6
7	39,922	2596.4	− 2552	44.4	× 1175 / 7529	6.9
8	39,924	2617.8	− 2567	50.8	× 1312 / 7529	8.9
11	39,926	2657.8	− 2583	74.8	× 1389 / 7529	13.8
Sum, rounded to a whole point						49

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	36,974	2482.3	− 2432	50.3	× 895 / 7390	6.1
4	36,977	2516.6	− 2473	43.6	× 932 / 7390	5.5
5	36,978	2560.0	− 2502	58	× 920 / 7390	7.2
6	36,980	2579.5	− 2531	48.5	× 1028 / 7390	6.7
7	36,982	2612.2	− 2552	60.2	× 1125 / 7390	9.2
8	36,985	2624.6	− 2567	57.6	× 1204 / 7390	9.4
11	36,987	2651.9	− 2583	68.9	× 1286 / 7390	12
Sum, rounded to a whole point						56

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,751	2476.4	− 2432	44.4	× 853 / 7574	5
4	37,752	2523.1	− 2473	50.1	× 957 / 7574	6.3
5	37,755	2547.1	− 2502	45.1	× 978 / 7574	5.8
6	37,757	2583.8	− 2531	52.8	× 1054 / 7574	7.3
7	37,758	2615.1	− 2552	63.1	× 1103 / 7574	9.2
8	37,761	2627.4	− 2567	60.4	× 1156 / 7574	9.2
11	37,762	2662.6	− 2583	79.6	× 1473 / 7574	15.5
Sum, rounded to a whole point						58

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,694	2483.2	− 2432	51.2	× 843 / 7501	5.8
4	37,696	2524.6	− 2473	51.6	× 910 / 7501	6.3
5	37,698	2559.6	− 2502	57.6	× 995 / 7501	7.6
6	37,700	2581.7	− 2531	50.7	× 1076 / 7501	7.3
7	37,702	2614.8	− 2552	62.8	× 1129 / 7501	9.5
8	37,704	2629.7	− 2567	62.7	× 1147 / 7501	9.6
11	37,706	2657.9	− 2583	74.9	× 1401 / 7501	14
Sum, rounded to a whole point						60

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,899	2482.6	− 2432	50.6	× 851 / 7333	5.9
4	37,900	2528.8	− 2473	55.8	× 868 / 7333	6.6
5	37,901	2571.2	− 2502	69.2	× 969 / 7333	9.1
6	37,902	2588.4	− 2531	57.4	× 1075 / 7333	8.4
7	37,903	2614.3	− 2552	62.3	× 1127 / 7333	9.6
8	37,904	2630.6	− 2567	63.6	× 1159 / 7333	10.1
11	37,905	2671.0	− 2583	88	× 1284 / 7333	15.4
Sum, rounded to a whole point						65

2021 from sb_ca2021_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
11	37,014	2675.5	− 2583	92.5	× 972 / 972	92.5
Sum, rounded to a whole point						93

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,788	2486.6	− 2432	54.6	× 972 / 7039	7.5
4	37,789	2523.7	− 2473	50.7	× 945 / 7039	6.8
5	37,790	2562.8	− 2502	60.8	× 905 / 7039	7.8
6	37,791	2583.8	− 2531	52.8	× 964 / 7039	7.2
7	37,792	2624.2	− 2552	72.2	× 1010 / 7039	10.4
8	37,793	2636.6	− 2567	69.6	× 1114 / 7039	11
11	37,794	2663.3	− 2583	80.3	× 1129 / 7039	12.9
Sum, rounded to a whole point						64

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,833	2482.2	− 2432	50.2	× 919 / 7149	6.5
4	37,834	2530.4	− 2473	57.4	× 1015 / 7149	8.1
5	37,835	2568.7	− 2502	66.7	× 978 / 7149	9.1
6	37,836	2586.0	− 2531	55	× 1033 / 7149	7.9
7	37,837	2622.2	− 2552	70.2	× 1029 / 7149	10.1
8	37,838	2636.5	− 2567	69.5	× 1042 / 7149	10.1
11	37,839	2661.6	− 2583	78.6	× 1133 / 7149	12.5
Sum, rounded to a whole point						64

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,683	2476.4	− 2432	44.4	× 929 / 7441	5.5
4	37,684	2525.0	− 2473	52	× 969 / 7441	6.8
5	37,685	2569.3	− 2502	67.3	× 1080 / 7441	9.8
6	37,686	2592.4	− 2531	61.4	× 1121 / 7441	9.3
7	37,687	2625.2	− 2552	73.2	× 1107 / 7441	10.9
8	37,688	2635.9	− 2567	68.9	× 1064 / 7441	9.9
11	37,689	2658.7	− 2583	75.7	× 1171 / 7441	11.9
Sum, rounded to a whole point						64

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
3	37,460	2481.4	− 2432	49.4	× 908 / 7580	5.9
4	37,461	2520.5	− 2473	47.5	× 980 / 7580	6.1
5	37,462	2562.6	− 2502	60.6	× 1040 / 7580	8.3
6	37,463	2590.9	− 2531	59.9	× 1186 / 7580	9.4
7	37,464	2638.4	− 2552	86.4	× 1167 / 7580	13.3
8	37,465	2642.9	− 2567	75.9	× 1121 / 7580	11.2
11	37,466	2662.1	− 2583	79.1	× 1178 / 7580	12.3
Sum, rounded to a whole point						67

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. 49, 56, 58, 60, 65, 93, 64, 64, 64, 67 → 64
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 7 · 2016→2017: 2 · 2017→2018: 2 · 2018→2019: 5 · 2019→2021: 28 · 2021→2022: 29 · 2022→2023: 0 · 2023→2024: 0 · 2024→2025: 3 → average 8.4
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 8.4 × 2.66 = 22.3. Upper limit 86.3, lower limit 41.7.

Why 2.66? It is the standard factor from quality control, the work of Walter Shewhart and W. Edwards Deming. It turns "how much the result typically changes in a year" into "how far it can wander by chance alone".

Years with no result (no state tests were given in spring 2020) are skipped: the year-to-year change runs from the last year with a result to the next one.

Step 3 · Free or reduced-price meals

The share of enrolled students eligible for free or reduced-price meals — for a district, the total across its schools. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.