2015
Step 1 |
|
Step 2 |
|
Step 3 |
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
Grade |
Line number |
Mean Scale Score |
- |
Scale Score: met min |
= |
Distance from standard |
* |
(Students tested in grade |
/ |
Students) tested in school |
= |
Weighted Distance From Standard |
3 |
2441433 |
2373 |
- |
2436 |
= |
-63 |
* |
(3276 |
/ |
19473) |
= |
-10.59867503 |
4 |
2441436 |
2418 |
- |
2485 |
= |
-67 |
* |
(2980 |
/ |
19473) |
= |
-10.253171 |
5 |
2441437 |
2431 |
- |
2528 |
= |
-97 |
* |
(2979 |
/ |
19473) |
= |
-14.83916185 |
6 |
2441440 |
2462 |
- |
2552 |
= |
-90 |
* |
(2720 |
/ |
19473) |
= |
-12.57125247 |
7 |
2441441 |
2481 |
- |
2567 |
= |
-86 |
* |
(2696 |
/ |
19473) |
= |
-11.9065372 |
8 |
2441444 |
2494 |
- |
2586 |
= |
-92 |
* |
(2711 |
/ |
19473) |
= |
-12.80809317 |
11 |
2441445 |
2512 |
- |
2628 |
= |
-116 |
* |
(2111 |
/ |
19473) |
= |
-12.57515528 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Stockton Unified
|
-86 |
2016
Step 1 |
|
Step 2 |
|
Step 3 |
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
Grade |
Line number |
Mean Scale Score |
- |
Scale Score: met min |
= |
Distance from standard |
* |
(Students tested in grade |
/ |
Students) tested in school |
= |
Weighted Distance From Standard |
3 |
74510 |
2388 |
- |
2436 |
= |
-48 |
* |
(2964 |
/ |
19523) |
= |
-7.28740459 |
4 |
74512 |
2424 |
- |
2485 |
= |
-61 |
* |
(3174 |
/ |
19523) |
= |
-9.91722579 |
5 |
74514 |
2440 |
- |
2528 |
= |
-88 |
* |
(2970 |
/ |
19523) |
= |
-13.3872867 |
6 |
74515 |
2460 |
- |
2552 |
= |
-92 |
* |
(2905 |
/ |
19523) |
= |
-13.68949438 |
7 |
74518 |
2485 |
- |
2567 |
= |
-82 |
* |
(2681 |
/ |
19523) |
= |
-11.26066689 |
8 |
74519 |
2495 |
- |
2586 |
= |
-91 |
* |
(2671 |
/ |
19523) |
= |
-12.449982 |
11 |
74522 |
2517 |
- |
2628 |
= |
-111 |
* |
(2158 |
/ |
19523) |
= |
-12.26952819 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Stockton Unified
|
-80 |
2017
Step 1 |
|
Step 2 |
|
Step 3 |
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
Grade |
Line number |
Mean Scale Score |
- |
Scale Score: met min |
= |
Distance from standard |
* |
(Students tested in grade |
/ |
Students) tested in school |
= |
Weighted Distance From Standard |
3 |
76496 |
2388 |
- |
2436 |
= |
-48 |
* |
(2919 |
/ |
19752) |
= |
-7.09356014 |
4 |
76498 |
2422 |
- |
2485 |
= |
-63 |
* |
(2973 |
/ |
19752) |
= |
-9.48253339 |
5 |
76500 |
2437 |
- |
2528 |
= |
-91 |
* |
(3137 |
/ |
19752) |
= |
-14.45256176 |
6 |
76503 |
2456 |
- |
2552 |
= |
-96 |
* |
(2945 |
/ |
19752) |
= |
-14.3134872 |
7 |
76504 |
2474 |
- |
2567 |
= |
-93 |
* |
(2903 |
/ |
19752) |
= |
-13.66843859 |
8 |
76506 |
2489 |
- |
2586 |
= |
-97 |
* |
(2663 |
/ |
19752) |
= |
-13.07771363 |
11 |
76509 |
2513 |
- |
2628 |
= |
-115 |
* |
(2212 |
/ |
19752) |
= |
-12.87869579 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Stockton Unified
|
-85 |
2018
Step 1 |
|
Step 2 |
|
Step 3 |
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
Grade |
Line number |
Mean Scale Score |
- |
Scale Score: met min |
= |
Distance from standard |
* |
(Students tested in grade |
/ |
Students) tested in school |
= |
Weighted Distance From Standard |
3 |
76680 |
2388 |
- |
2436 |
= |
-48 |
* |
(2793 |
/ |
19830) |
= |
-6.76066565 |
4 |
76681 |
2425 |
- |
2485 |
= |
-60 |
* |
(2928 |
/ |
19830) |
= |
-8.85930408 |
5 |
76684 |
2438 |
- |
2528 |
= |
-90 |
* |
(2953 |
/ |
19830) |
= |
-13.40242056 |
6 |
76685 |
2459 |
- |
2552 |
= |
-93 |
* |
(3084 |
/ |
19830) |
= |
-14.46354005 |
7 |
76688 |
2476 |
- |
2567 |
= |
-91 |
* |
(2916 |
/ |
19830) |
= |
-13.38154308 |
8 |
76689 |
2481 |
- |
2586 |
= |
-105 |
* |
(2844 |
/ |
19830) |
= |
-15.05900151 |
11 |
76692 |
2505 |
- |
2628 |
= |
-123 |
* |
(2312 |
/ |
19830) |
= |
-14.34069583 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Stockton Unified
|
-86 |
2019
Step 1 |
|
Step 2 |
|
Step 3 |
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
Grade |
Line number |
Mean Scale Score |
- |
Scale Score: met min |
= |
Distance from standard |
* |
(Students tested in grade |
/ |
Students) tested in school |
= |
Weighted Distance From Standard |
3 |
77187 |
2392 |
- |
2436 |
= |
-44 |
* |
(2924 |
/ |
19683) |
= |
-6.53640196 |
4 |
77188 |
2425 |
- |
2485 |
= |
-60 |
* |
(2777 |
/ |
19683) |
= |
-8.46517296 |
5 |
77189 |
2443 |
- |
2528 |
= |
-85 |
* |
(2932 |
/ |
19683) |
= |
-12.66168772 |
6 |
77190 |
2458 |
- |
2552 |
= |
-94 |
* |
(2913 |
/ |
19683) |
= |
-13.91159881 |
7 |
77191 |
2480 |
- |
2567 |
= |
-87 |
* |
(3019 |
/ |
19683) |
= |
-13.34415483 |
8 |
77192 |
2486 |
- |
2586 |
= |
-100 |
* |
(2909 |
/ |
19683) |
= |
-14.7792511 |
11 |
77193 |
2517 |
- |
2628 |
= |
-111 |
* |
(2209 |
/ |
19683) |
= |
-12.45739969 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Stockton Unified
|
-82 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-86
|
-80
|
-85
|
-86
|
-82
|
-419.0 |
-83.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -77.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -89.8
For the lines, you have the data necessary to plot the chart.