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 |
797621 |
2390 |
- |
2436 |
= |
-46 |
* |
(76 |
/ |
244)
|
= |
-14.32786881 |
| 4 |
797624 |
2455 |
- |
2485 |
= |
-30 |
* |
(86 |
/ |
244)
|
= |
-10.57377048 |
| 5 |
797625 |
2494 |
- |
2528 |
= |
-34 |
* |
(82 |
/ |
244)
|
= |
-11.42622948 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Harvard Elementary
|
-36 |
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 |
24932 |
2393 |
- |
2436 |
= |
-43 |
* |
(70 |
/ |
234)
|
= |
-12.86324786 |
| 4 |
24935 |
2452 |
- |
2485 |
= |
-33 |
* |
(75 |
/ |
234)
|
= |
-10.57692306 |
| 5 |
24936 |
2469 |
- |
2528 |
= |
-59 |
* |
(89 |
/ |
234)
|
= |
-22.44017092 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Harvard Elementary
|
-46 |
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 |
25429 |
2400 |
- |
2436 |
= |
-36 |
* |
(70 |
/ |
215)
|
= |
-11.72093022 |
| 4 |
25432 |
2434 |
- |
2485 |
= |
-51 |
* |
(72 |
/ |
215)
|
= |
-17.07906972 |
| 5 |
25434 |
2450 |
- |
2528 |
= |
-78 |
* |
(73 |
/ |
215)
|
= |
-26.48372087 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Harvard Elementary
|
-55 |
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 |
25456 |
2388 |
- |
2436 |
= |
-48 |
* |
(56 |
/ |
188)
|
= |
-14.29787232 |
| 4 |
25458 |
2439 |
- |
2485 |
= |
-46 |
* |
(65 |
/ |
188)
|
= |
-15.90425528 |
| 5 |
25460 |
2472 |
- |
2528 |
= |
-56 |
* |
(67 |
/ |
188)
|
= |
-19.95744677 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Harvard Elementary
|
-50 |
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 |
25618 |
2415 |
- |
2436 |
= |
-21 |
* |
(71 |
/ |
190)
|
= |
-7.84736841 |
| 4 |
25619 |
2433 |
- |
2485 |
= |
-52 |
* |
(55 |
/ |
190)
|
= |
-15.05263157 |
| 5 |
25620 |
2450 |
- |
2528 |
= |
-78 |
* |
(64 |
/ |
190)
|
= |
-26.27368419 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Harvard Elementary
|
-49 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-36
|
-46
|
-55
|
-50
|
-49
|
-236.0 |
-47.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -26.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -68.2
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:
