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 |
3116290 |
2373 |
- |
2436 |
= |
-63 |
* |
(2000 |
/ |
10704) |
= |
-11.77130039 |
4 |
3116293 |
2401 |
- |
2485 |
= |
-84 |
* |
(1883 |
/ |
10704) |
= |
-14.77690578 |
5 |
3116294 |
2436 |
- |
2528 |
= |
-92 |
* |
(1809 |
/ |
10704) |
= |
-15.54820626 |
6 |
3116297 |
2445 |
- |
2552 |
= |
-107 |
* |
(1701 |
/ |
10704) |
= |
-17.00364349 |
7 |
3116298 |
2461 |
- |
2567 |
= |
-106 |
* |
(1655 |
/ |
10704) |
= |
-16.38920028 |
8 |
3116301 |
2472 |
- |
2586 |
= |
-114 |
* |
(1656 |
/ |
10704) |
= |
-17.63677128 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Oxnard
|
-93 |
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 |
96114 |
2378 |
- |
2436 |
= |
-58 |
* |
(1871 |
/ |
10833) |
= |
-10.01735435 |
4 |
96117 |
2412 |
- |
2485 |
= |
-73 |
* |
(1963 |
/ |
10833) |
= |
-13.22800698 |
5 |
96118 |
2431 |
- |
2528 |
= |
-97 |
* |
(1900 |
/ |
10833) |
= |
-17.01283116 |
6 |
96121 |
2441 |
- |
2552 |
= |
-111 |
* |
(1769 |
/ |
10833) |
= |
-18.12600385 |
7 |
96122 |
2460 |
- |
2567 |
= |
-107 |
* |
(1705 |
/ |
10833) |
= |
-16.84067201 |
8 |
96124 |
2467 |
- |
2586 |
= |
-119 |
* |
(1625 |
/ |
10833) |
= |
-17.85054919 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Oxnard
|
-93 |
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 |
98889 |
2376 |
- |
2436 |
= |
-60 |
* |
(1822 |
/ |
10857) |
= |
-10.06907982 |
4 |
98892 |
2410 |
- |
2485 |
= |
-75 |
* |
(1850 |
/ |
10857) |
= |
-12.77977335 |
5 |
98894 |
2426 |
- |
2528 |
= |
-102 |
* |
(1921 |
/ |
10857) |
= |
-18.04752688 |
6 |
98896 |
2434 |
- |
2552 |
= |
-118 |
* |
(1834 |
/ |
10857) |
= |
-19.93294645 |
7 |
98897 |
2455 |
- |
2567 |
= |
-112 |
* |
(1741 |
/ |
10857) |
= |
-17.96002578 |
8 |
98900 |
2465 |
- |
2586 |
= |
-121 |
* |
(1689 |
/ |
10857) |
= |
-18.82370816 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Oxnard
|
-98 |
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 |
99048 |
2381 |
- |
2436 |
= |
-55 |
* |
(1773 |
/ |
10769) |
= |
-9.05515831 |
4 |
99051 |
2415 |
- |
2485 |
= |
-70 |
* |
(1796 |
/ |
10769) |
= |
-11.67425014 |
5 |
99052 |
2430 |
- |
2528 |
= |
-98 |
* |
(1816 |
/ |
10769) |
= |
-16.52595403 |
6 |
99055 |
2438 |
- |
2552 |
= |
-114 |
* |
(1876 |
/ |
10769) |
= |
-19.85922545 |
7 |
99056 |
2446 |
- |
2567 |
= |
-121 |
* |
(1803 |
/ |
10769) |
= |
-20.25842694 |
8 |
99059 |
2463 |
- |
2586 |
= |
-123 |
* |
(1705 |
/ |
10769) |
= |
-19.47395298 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Oxnard
|
-97 |
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 |
99714 |
2393 |
- |
2436 |
= |
-43 |
* |
(1772 |
/ |
10600) |
= |
-7.18830187 |
4 |
99715 |
2424 |
- |
2485 |
= |
-61 |
* |
(1718 |
/ |
10600) |
= |
-9.88660373 |
5 |
99716 |
2440 |
- |
2528 |
= |
-88 |
* |
(1763 |
/ |
10600) |
= |
-14.63622635 |
6 |
99717 |
2450 |
- |
2552 |
= |
-102 |
* |
(1741 |
/ |
10600) |
= |
-16.75301887 |
7 |
99718 |
2452 |
- |
2567 |
= |
-115 |
* |
(1843 |
/ |
10600) |
= |
-19.99481126 |
8 |
99719 |
2466 |
- |
2586 |
= |
-120 |
* |
(1763 |
/ |
10600) |
= |
-19.95849048 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Oxnard
|
-88 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-93
|
-93
|
-98
|
-97
|
-88
|
-469.0 |
-93.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -84.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -102.8
For the lines, you have the data necessary to plot the chart.