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 |
2264963 |
2414 |
- |
2436 |
= |
-22 |
* |
(32 |
/ |
144)
|
= |
-4.88888888 |
4 |
2264966 |
2432 |
- |
2485 |
= |
-53 |
* |
(41 |
/ |
144)
|
= |
-15.09027777 |
5 |
2264967 |
2420 |
- |
2528 |
= |
-108 |
* |
(25 |
/ |
144)
|
= |
-18.74999999 |
6 |
2264970 |
2497 |
- |
2552 |
= |
-55 |
* |
(46 |
/ |
144)
|
= |
-17.56944442 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Whitman Elementary
|
-56 |
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 |
69495 |
2412 |
- |
2436 |
= |
-24 |
* |
(31 |
/ |
97)
|
= |
-7.67010307 |
4 |
69498 |
2439 |
- |
2485 |
= |
-46 |
* |
(30 |
/ |
97)
|
= |
-14.2268041 |
5 |
69500 |
2466 |
- |
2528 |
= |
-62 |
* |
(36 |
/ |
97)
|
= |
-23.01030924 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Whitman Elementary
|
-45 |
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 |
71329 |
2437 |
- |
2436 |
= |
1 |
* |
(34 |
/ |
101)
|
= |
0.33663366 |
4 |
71331 |
2446 |
- |
2485 |
= |
-39 |
* |
(36 |
/ |
101)
|
= |
-13.90099008 |
5 |
71332 |
2458 |
- |
2528 |
= |
-70 |
* |
(31 |
/ |
101)
|
= |
-21.48514851 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Whitman Elementary
|
-35 |
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 |
71473 |
2423 |
- |
2436 |
= |
-13 |
* |
(23 |
/ |
85)
|
= |
-3.51764706 |
4 |
71476 |
2415 |
- |
2485 |
= |
-70 |
* |
(27 |
/ |
85)
|
= |
-22.23529406 |
5 |
71477 |
2438 |
- |
2528 |
= |
-90 |
* |
(35 |
/ |
85)
|
= |
-37.05882345 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Whitman Elementary
|
-63 |
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 |
71959 |
2444 |
- |
2436 |
= |
8 |
* |
(15 |
/ |
52)
|
= |
2.3076923 |
4 |
71960 |
2440 |
- |
2485 |
= |
-45 |
* |
(17 |
/ |
52)
|
= |
-14.71153842 |
5 |
71961 |
2442 |
- |
2528 |
= |
-86 |
* |
(20 |
/ |
52)
|
= |
-33.07692302 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Whitman Elementary
|
-45 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-56
|
-45
|
-35
|
-63
|
-45
|
-244.0 |
-48.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -18.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -78.8
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: