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 |
322538 |
2391 |
- |
2436 |
= |
-45 |
* |
(115 |
/ |
449)
|
= |
-11.52561245 |
4 |
322539 |
2411 |
- |
2485 |
= |
-74 |
* |
(115 |
/ |
449)
|
= |
-18.95322935 |
5 |
322542 |
2460 |
- |
2528 |
= |
-68 |
* |
(103 |
/ |
449)
|
= |
-15.59910908 |
6 |
322543 |
2456 |
- |
2552 |
= |
-96 |
* |
(116 |
/ |
449)
|
= |
-24.80178173 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Centennial Elementary
|
-71 |
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 |
9624 |
2393 |
- |
2436 |
= |
-43 |
* |
(97 |
/ |
431)
|
= |
-9.67749417 |
4 |
9625 |
2413 |
- |
2485 |
= |
-72 |
* |
(121 |
/ |
431)
|
= |
-20.21345705 |
5 |
9628 |
2459 |
- |
2528 |
= |
-69 |
* |
(116 |
/ |
431)
|
= |
-18.57076564 |
6 |
9630 |
2466 |
- |
2552 |
= |
-86 |
* |
(97 |
/ |
431)
|
= |
-19.35498834 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Centennial Elementary
|
-68 |
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 |
9951 |
2389 |
- |
2436 |
= |
-47 |
* |
(117 |
/ |
439)
|
= |
-12.52619588 |
4 |
9953 |
2423 |
- |
2485 |
= |
-62 |
* |
(94 |
/ |
439)
|
= |
-13.27562637 |
5 |
9955 |
2449 |
- |
2528 |
= |
-79 |
* |
(111 |
/ |
439)
|
= |
-19.97494302 |
6 |
9958 |
2449 |
- |
2552 |
= |
-103 |
* |
(117 |
/ |
439)
|
= |
-27.45102502 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Centennial Elementary
|
-73 |
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 |
9970 |
2394 |
- |
2436 |
= |
-42 |
* |
(98 |
/ |
416)
|
= |
-9.89423077 |
4 |
9972 |
2456 |
- |
2485 |
= |
-29 |
* |
(119 |
/ |
416)
|
= |
-8.29567307 |
5 |
9974 |
2459 |
- |
2528 |
= |
-69 |
* |
(92 |
/ |
416)
|
= |
-15.25961537 |
6 |
9976 |
2443 |
- |
2552 |
= |
-109 |
* |
(107 |
/ |
416)
|
= |
-28.03605764 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Centennial Elementary
|
-61 |
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 |
10050 |
2400 |
- |
2436 |
= |
-36 |
* |
(116 |
/ |
405)
|
= |
-10.31111111 |
4 |
10051 |
2467 |
- |
2485 |
= |
-18 |
* |
(90 |
/ |
405)
|
= |
-4.0 |
5 |
10052 |
2476 |
- |
2528 |
= |
-52 |
* |
(116 |
/ |
405)
|
= |
-14.89382716 |
6 |
10053 |
2441 |
- |
2552 |
= |
-111 |
* |
(83 |
/ |
405)
|
= |
-22.74814808 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Centennial Elementary
|
-52 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-71
|
-68
|
-73
|
-61
|
-52
|
-325.0 |
-65.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -41.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -89.0
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources: