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 |
2365669 |
2459 |
- |
2436 |
= |
23 |
* |
(42 |
/ |
131)
|
= |
7.3740458 |
| 4 |
2365670 |
2519 |
- |
2485 |
= |
34 |
* |
(44 |
/ |
131)
|
= |
11.41984731 |
| 5 |
2365673 |
2556 |
- |
2528 |
= |
28 |
* |
(45 |
/ |
131)
|
= |
9.6183206 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Yick Wo Elementary
|
28 |
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 |
72272 |
2447 |
- |
2436 |
= |
11 |
* |
(42 |
/ |
131)
|
= |
3.52671756 |
| 4 |
72273 |
2467 |
- |
2485 |
= |
-18 |
* |
(45 |
/ |
131)
|
= |
-6.1832061 |
| 5 |
72276 |
2536 |
- |
2528 |
= |
8 |
* |
(44 |
/ |
131)
|
= |
2.6870229 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Yick Wo Elementary
|
0 |
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 |
74246 |
2508 |
- |
2436 |
= |
72 |
* |
(39 |
/ |
115)
|
= |
24.41739125 |
| 4 |
74247 |
2504 |
- |
2485 |
= |
19 |
* |
(33 |
/ |
115)
|
= |
5.4521739 |
| 5 |
74249 |
2503 |
- |
2528 |
= |
-25 |
* |
(43 |
/ |
115)
|
= |
-9.34782608 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Yick Wo Elementary
|
21 |
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 |
74419 |
2491 |
- |
2436 |
= |
55 |
* |
(38 |
/ |
112)
|
= |
18.66071427 |
| 4 |
74422 |
2516 |
- |
2485 |
= |
31 |
* |
(38 |
/ |
112)
|
= |
10.51785713 |
| 5 |
74423 |
2543 |
- |
2528 |
= |
15 |
* |
(36 |
/ |
112)
|
= |
4.82142857 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Yick Wo Elementary
|
34 |
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 |
74943 |
2522 |
- |
2436 |
= |
86 |
* |
(36 |
/ |
104)
|
= |
29.76923076 |
| 4 |
74944 |
2506 |
- |
2485 |
= |
21 |
* |
(35 |
/ |
104)
|
= |
7.06730768 |
| 5 |
74945 |
2566 |
- |
2528 |
= |
38 |
* |
(33 |
/ |
104)
|
= |
12.0576923 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Yick Wo Elementary
|
49 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
28
|
0
|
21
|
34
|
49
|
132.0 |
26.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 66.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: 0.0
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:
