NSCAS General Test Timing Data November 20, 2018
Descriptive Statistics of Test Duration in Minutes and Scale Score
Table 2.1. Descriptive Statistics of Test Duration in Minutes and Scale Score – ELA
Grade N Test Duration in Minutes Scale Score
Mean SD Median Min. Max. Mean SD Median Min. Max.
3 23,722 84.62 37.61 78.38 4.98 445.27 2481 76 2483 2222 2832
4 23,735 87.41 35.69 82.10 4.37 543.88 2512 72 2512 2252 2838
5 22,168 90.41 36.78 84.35 4.28 434.32 2531 67 2533 2282 2860
6 23,190 88.18 35.05 83.12 3.03 379.52 2539 67 2538 2291 2790
7 22,819 77.55 29.55 73.53 2.57 319.27 2551 74 2551 2303 2862
8 23,095 79.73 30.38 75.75 1.80 436.90 2561 66 2562 2312 2873
Table 2.2. Descriptive Statistics of Test Duration in Minutes and Scale Score – Math
Grade N Test Duration in Minutes Scale Score
Mean SD Median Min. Max. Mean SD Median Min. Max.
3 23,705 60.81 28.16 54.33 3.45 312.13 1192 71 1189 1002 1428
4 23,692 67.22 28.74 61.49 6.13 420.37 1227 67 1221 1036 1491
5 22,120 65.00 27.68 59.08 8.80 341.68 1242 66 1236 1022 1482
6 23,156 76.94 32.06 71.62 3.67 1514.12 1254 72 1253 1032 1488
7 22,753 68.49 27.00 64.07 1.53 338.82 1255 67 1246 1065 1540
8 23,024 65.42 25.93 61.23 1.50 430.92 1271 71 1265 1069 1545
Table 2.3. Descriptive Statistics of Test Duration in Minutes and Scale Score – Science
Grade N Test Duration in Minutes Scale Score
Mean SD Median Min. Max. Mean SD Median Min. Max.
5 22,133 38.23 17.75 34.28 4.68 243.07 102 33 101 2 200
8 23,022 37.14 16.81 33.45 1.07 457.17 103 36 102 2 200
NSCAS General Test Timing Data November 20, 2018
Distribution of Students’ Test Duration
Table 2.1. Distribution of Students’ Test Duration in Minutes – ELA
Grade 3 Grade 4 Grade 5 Grade 6 Grade 7 Grade 8
Test Duration N % N % N % N % N % N %
Test Duration <= 60 6,149 25.92 5,051 21.28 3,993 18.01 4,422 19.07 6,496 28.47 5,818 25.19
60 < Test Duration <= 120 14,280 60.20 15,142 63.80 14,504 65.43 15,392 66.37 14,511 63.59 15,271 66.12
120 < Test Duration <= 180 2,732 11.52 3,062 12.90 3,093 13.95 2,895 12.48 1,652 7.24 1,806 7.82
180 < Test Duration <= 240 444 1.87 410 1.73 478 2.16 404 1.74 140 0.61 174 0.75
240 < Test Duration <= 300 88 0.37 54 0.23 69 0.31 52 0.22 18 0.08 22 0.10
300 < Test Duration <= 360 23 0.10 13 0.05 25 0.11 20 0.09 2 0.01 3 0.01
360 < Test Duration 6 0.03 3 0.01 6 0.03 5 0.02 - - 1 0.00
Table 2.2. Distribution of Students’ Test Duration in Minutes – MATH
Grade 3 Grade 4 Grade 5 Grade 6 Grade 7 Grade 8
Test Duration N % N % N % N % N % N %
Test Duration <= 60 14,148 59.68 11,255 47.51 11,424 51.65 7,136 30.82 9,688 42.58 11,017 47.85
60 < Test Duration <= 120 8,604 36.30 11,256 47.51 9,760 44.12 14,201 61.33 12,039 52.91 11,184 48.58
120 < Test Duration <= 180 802 3.38 1,037 4.38 805 3.64 1,613 6.97 932 4.10 744 3.23
180 < Test Duration <= 240 127 0.54 114 0.48 107 0.48 161 0.70 77 0.34 67 0.29
240 < Test Duration <= 300 21 0.09 26 0.11 18 0.08 33 0.14 14 0.06 9 0.04
300 < Test Duration <= 360 3 0.01 1 0.00 6 0.03 6 0.03 3 0.01 1 0.00
360 < Test Duration - - 3 0.01 - - 6 0.03 - - 2 0.01
NSCAS General Test Timing Data November 20, 2018
Table 2.3. Distribution of Students’ Test Duration in Minutes – Science
Grade 5 Grade 8
Test Duration N % N %
Test Duration <= 60 19,982 90.28 21,177 91.99
60 < Test Duration <= 120 2,062 9.33 1,772 7.70
120 < Test Duration <= 180 72 0.33 61 0.26
180 < Test Duration <= 240 14 0.06 10 0.04
240 < Test Duration <= 300 1 0.00 1 0.00
300 < Test Duration <= 360 - - - -
360 < Test Duration - - 1 0.00
NSCAS General Test Timing Data November 20, 2018
Descriptive Statistics: Number of Days a Student Actively Tested – ELA
Table A.13. Descriptive Statistics: Number of Days a Student Actively Tested – ELA Grade 3
#Active Days
Test Duration Scale Score
N Mean SD Median Min. Max. Mean SD Median Min. Max.
1 8,517 68.20 29.45 63.47 4.98 303.58 2470 78 2470 2222 2832
2 12,782 86.74 30.75 82.45 11.42 366.52 2489 75 2491 2235 2832
3 2,055 124.21 44.20 118.00 23.23 445.27 2484 72 2486 2222 2832
4 297 162.14 65.01 151.43 51.70 364.12 2486 73 2488 2300 2745
5 46 206.01 88.38 193.17 78.77 426.87 2453 71 2446 2326 2641
6 20 201.55 82.17 187.63 87.07 338.90 2453 46 2464 2375 2522
7 4 167.47 23.35 172.03 136.05 189.75 2419 66 2429 2331 2486
8 1 168.57 - 168.57 168.57 168.57 2351 - 2351 2351 2351
Table A.14. Descriptive Statistics: Number of Days a Student Actively Tested – ELA Grade 4
#Active Days
Test Duration Scale Score
N Mean SD Median Min. Max. Mean SD Median Min. Max.
1 8,416 72.75 30.22 68.19 4.37 261.08 2498 73 2499 2252 2785
2 12,814 89.58 30.75 85.03 6.37 341.10 2521 71 2522 2252 2838
3 2,167 121.49 41.65 116.02 28.32 543.88 2512 66 2514 2297 2752
4 276 145.82 46.55 145.03 31.88 360.53 2484 61 2483 2334 2707
5 41 169.18 61.72 160.57 71.83 429.53 2469 60 2457 2333 2586
6 19 203.24 57.96 217.57 98.55 289.05 2459 42 2464 2390 2530
7 2 148.45 94.19 148.45 81.85 215.05 2399 105 2399 2325 2473
NSCAS General Test Timing Data November 20, 2018
Table A.15. Descriptive Statistics: Number of Days a Student Actively Tested – ELA Grade 5
#Active Days
Test Duration Scale Score
N Mean SD Median Min. Max. Mean SD Median Min. Max.
1 8,804 76.17 29.50 72.20 4.28 256.90 2524 68 2525 2282 2860
2 11,077 93.10 31.82 88.02 14.83 434.32 2539 66 2541 2285 2833
3 1,916 126.28 42.62 118.61 29.13 411.15 2525 61 2525 2318 2788
4 300 158.60 61.01 147.78 41.07 411.63 2518 58 2517 2389 2672
5 58 182.59 54.41 179.95 83.93 330.32 2507 63 2508.5 2386 2651
6 10 148.66 55.26 122.92 82.10 238.57 2494 48 2482 2443 2576
7 3 208.40 111.98 188.57 107.67 328.97 2441 29 2449 2409 2466
Table A.16. Descriptive Statistics: Number of Days a Student Actively Tested – ELA Grade 6
#Active Days
Test Duration Scale Score
N Mean SD Median Min. Max. Mean SD Median Min. Max.
1 9,629 76.32 29.23 73.13 3.03 276.43 2532 67 2532 2317 2790
2 9,193 89.49 32.59 85.22 3.48 361.45 2541 67 2541 2292 2790
3 3,496 105.26 35.08 98.38 23.32 362.08 2547 64 2548 2336 2790
4 747 131.70 41.99 121.12 35.50 379.52 2547 65 2549 2347 2758
5 90 158.77 41.90 158.03 60.17 332.07 2535 58 2524.5 2441 2709
6 24 182.79 52.17 177.50 95.48 353.27 2495 58 2482.5 2371 2617
7 9 199.19 79.97 189.20 112.57 368.62 2514 41 2509 2457 2572
8 2 209.80 101.49 209.80 138.03 281.57 2603 44 2603 2572 2634
NSCAS General Test Timing Data November 20, 2018
Table A.17. Descriptive Statistics: Number of Days a Student Actively Tested – ELA Grade 7
#Active Days
Test Duration Scale Score
N Mean SD Median Min. Max. Mean SD Median Min. Max.
1 10,057 67.68 25.42 64.75 2.57 268.78 2542 74 2541 2303 2862
2 7,849 78.72 27.34 74.97 3.07 319.27 2555 75 2554 2361 2862
3 3,923 89.44 26.89 83.67 25.18 289.20 2566 70 2570 2312 2804
4 837 115.83 32.78 110.88 33.57 293.98 2548 68 2543 2375 2804
5 125 144.74 29.00 141.58 79.12 246.02 2535 64 2530 2393 2741
6 15 173.27 24.85 171.32 133.55 225.63 2512 55 2514 2423 2606
7 9 187.24 54.57 196.57 129.05 296.70 2510 41 2500 2457 2589
8 2 233.93 51.85 233.93 197.27 270.60 2461 54 2460.5 2422 2499
9 2 244.38 14.46 244.38 234.15 254.60 2564 0 2564 2564 2564
Table A.18. Descriptive Statistics: Number of Days a Student Actively Tested – ELA Grade 8
#Active Days
Test Duration Scale Score
N Mean SD Median Min. Max. Mean SD Median Min. Max.
1 10,036 70.21 27.47 67.32 1.8- 271.05 2554 68 2555 2312 2873
2 8,002 79.24 26.95 74.58 8.57 285.15 2563 66 2563 2312 2791
3 4,191 93.58 26.64 88.35 17.22 352.22 2574 62 2576 2341 2788
4 744 122.50 33.52 117.37 54.67 326.13 2570 61 2567 2394 2749
5 108 153.51 43.49 148.63 78.93 436.90 2558 56 2556 2439 2707
6 13 201.76 59.47 213.77 105.38 286.70 2567 56 2557 2486 2674
7 1 185.57 - 185.57 185.57 185.57 2491 - 2491 2491 2491
NSCAS General Test Timing Data November 20, 2018
Descriptive Statistics: Number of Days a Student Actively Tested – Mathematics
Table A.13. Descriptive Statistics: Number of Days a Student Actively Tested – Math Grade 3
#Active Days
Test Duration Scale Score
N Mean SD Median Min. Max. Mean SD Median Min. Max.
1 11,753 51.01 20.38 47.15 3.45 220.52 1188 73 1184 1002 1428
2 11,092 66.71 25.79 61.90 9.45 312.13 1197 69 1194 1002 1428
3 752 111.82 43.46 107.17 25.55 269.98 1191 71 1188 1002 1428
4 86 151.12 57.40 152.80 53.13 302.55 1179 73 1196 1023 1344
5 12 207.41 60.05 203.63 68.48 293.88 1201 79 1211.5 1089 1299
6 7 243.42 28.79 240.35 210.47 293.37 1254 93 1232 1133 1428
7 3 257.01 51.16 260.35 204.27 306.42 1212 26 1204 1192 1241
Table A.14. Descriptive Statistics: Number of Days a Student Actively Tested – Math Grade 4
#Active Days
Test Duration Scale Score
N Mean SD Median Min. Max. Mean SD Median Min. Max.
1 11,159 56.89 22.03 52.72 6.13 325.30 1224 67 1219 1036 1491
2 11,601 74.06 27.93 68.98 13.72 361.27 1232 66 1226 1040 1491
3 853 102.34 41.29 98.43 28.05 382.50 1210 60 1203 1084 1491
4 68 139.09 64.97 126.50 29.42 288.60 1193 59 1184 1101 1320
5 9 168.27 111.51 127.40 35.00 420.37 1203 93 1166 1129 1405
6 2 205.78 54.45 205.78 167.28 244.28 1152 26 1151.5 1133 1170
NSCAS General Test Timing Data November 20, 2018
Table A.15. Descriptive Statistics: Number of Days a Student Actively Tested – Math Grade 5
#Active Days
Test Duration Scale Score
N Mean SD Median Min. Max. Mean SD Median Min. Max.
1 11,531 56.49 21.15 52.75 8.80 257.07 1240 67 1235 1047 1482
2 9,810 70.76 26.23 66.16 15.32 276.92 1244 65 1240 1022 1482
3 692 112.80 40.41 104.48 32.65 334.93 1231 63 1225 1079 1482
4 75 154.34 56.83 149.80 52.00 312.05 1204 64 1196 1113 1411
5 12 218.12 68.34 222.38 92.63 341.68 1206 20 1207.5 1165 1230
Table A.16. Descriptive Statistics: Number of Days a Student Actively Tested – Math Grade 6
#Active Days
Test Duration Scale Score
N Mean SD Median Min. Max. Mean SD Median Min. Max.
1 9,975 67.96 25.28 64.42 3.67 260.62 1248 72 1248 1032 1488
2 9,825 79.14 30.26 73.45 8.82 370.63 1256 72 1253 1032 1488
3 2,952 93.77 41.41 86.89 17.22 1514.12 1265 71 1265 1051 1488
4 360 118.02 41.48 111.65 49.27 352.73 1275 67 1274 1096 1470
5 37 150.07 52.83 140.57 50.18 303.45 1257 72 1249 1129 1488
6 5 163.99 38.41 170.47 104.33 205.37 1240 59 1270 1172 1290
7 2 299.43 94.48 299.43 232.62 366.23 1355 7 1355 1350 1360
Table A.17. Descriptive Statistics: Number of Days a Student Actively Tested – Math Grade 7
#Active Days
Test Duration Scale Score
N Mean SD Median Min. Max. Mean SD Median Min. Max.
1 10,625 61.40 23.98 58.38 1.53 277.48 1249 66 1241 1067 1540
2 8,313 69.67 25.93 64.12 5.32 338.82 1258 69 1247 1065 1540
3 3,400 82.11 25.73 77.23 25.38 338.60 1266 66 1259 1110 1540
4 382 111.36 33.47 106.58 37.30 334.35 1263 67 1255.5 1110 1540
5 26 142.48 37.62 138.62 72.73 229.35 1240 57 1226.5 1121 1383
6 6 201.35 32.98 207.71 153.10 234.18 1340 120 1343.5 1198 1499
7 1 264.87 - 264.87 264.87 264.87 1280 - 1280 1280 1280
NSCAS General Test Timing Data November 20, 2018
Table A.18. Descriptive Statistics: Number of Days a Student Actively Tested – Math Grade 8
#Active Days
Test Duration Scale Score
N Mean SD Median Min. Max. Mean SD Median Min. Max.
1 11,125 59.11 23.72 56.33 1.50 294.82 1265 72 1259 1087 1545
2 8,806 65.99 23.39 61.20 4.27 278.47 1277 71 1271 1069 1545
3 2,797 83.07 24.96 78.37 19.08 322.80 1277 67 1272 1114 1545
4 271 114.07 27.74 111.17 58.35 228.33 1276 65 1263 1160 1545
5 21 145.11 47.76 142.48 50.00 263.67 1265 84 1241 1135 1447
6 3 290.16 139.74 288.12 151.45 430.92 1200 46 1199 1155 1246
7 1 412.17 - 412.17 412.17 412.17 1191 - 1191 1191 1191
NSCAS General Test Timing Data November 20, 2018
Descriptive Statistics: Number of Days a Student Actively Tested – Science
Table A.13. Descriptive Statistics: Number of Days a Student Actively Tested – Science Grade 5
#Active Days
Test Duration Scale Score
N Mean SD Median Min. Max. Mean SD Median Min. Max.
1 17,936 35.59 14.40 32.72 4.68 212.90 103 33 101 2 200
2 4,071 48.05 22.19 43.68 8.03 204.90 99 34 98 2 200
3 98 85.46 46.58 74.47 23.57 243.07 85 29 86 25 159
4 21 119.33 35.25 110.43 64.47 222.03 92 34 86 37 159
5 6 174.13 25.66 166.03 146.73 213.33 98 39 101 37 151
6 1 211.42 - 211.42 211.42 211.42 123 - 123 123 123
Table A.14. Descriptive Statistics: Number of Days a Student Actively Tested – Science Grade 8
#Active Days
Test Duration Scale Score
N Mean SD Median Min. Max. Mean SD Median Min. Max.
1 17,638 34.36 14.18 31.23 1.07 224.73 105 36 105 2 200
2 5,171 44.85 18.00 40.28 8.38 169.20 96 33 94 2 200
3 196 76.30 35.06 68.81 11.63 213.85 84 31 81 29 196
4 14 101.93 50.16 88.28 52.08 252.68 97 28 105 59 156
5 2 163.62 14.09 163.62 153.65 173.58 86 23 85.5 69 102
7 1 457.17 - 457.17 457.17 457.17 42 - 42 42 42
NSCAS General Test Timing Data November 20, 2018
Average Scale Score of Students by Student Test Pause Counts with Students who had 1 Actively Tested Day
• Please note that we excluded students with disability for this table because they may require more pauses for their testing
• Please note that we only included students who have 1 actively tested day
Table 2.1. Average Scale Score of Students with 0 Pause and 1 or More Pauses
Grade ELA Math Science
0 Pause 1 or More Pauses 0 Pause 1 or More Pauses 0 Pause 1 or More Pauses
3 2480 2484 1200 1195 - -
4 2507 2513 1235 1228 - -
5 2533 2534 1252 1238 108 99
6 2540 2548 1259 1265 - -
7 2553 2559 1258 1263 - -
8 2564 2567 1276 1275 110 96
NSCAS General Test Timing Data November 20, 2018
Histogram of Test Duration – ELA
NSCAS General Test Timing Data November 20, 2018
Histogram of Test Duration – Mathematics
NSCAS General Test Timing Data November 20, 2018
Histogram of Test Duration – Science
NSCAS General Test Timing Data November 20, 2018
Plots Test Duration in Minutes and Scale Score – ELA
NSCAS General Test Timing Data November 20, 2018
Plots Test Duration in Minutes and Scale Score – Math
NSCAS General Test Timing Data November 20, 2018
Plots Test Duration in Minutes and Scale Score – Science