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 |
967382 |
2379 |
- |
2436 |
= |
-57 |
* |
(142 |
/ |
375)
|
= |
-21.58399996 |
| 4 |
967385 |
2406 |
- |
2485 |
= |
-79 |
* |
(112 |
/ |
375)
|
= |
-23.59466661 |
| 5 |
967386 |
2454 |
- |
2528 |
= |
-74 |
* |
(121 |
/ |
375)
|
= |
-23.87733328 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Twenty-Eighth Street Elementary
|
-69 |
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 |
30609 |
2388 |
- |
2436 |
= |
-48 |
* |
(133 |
/ |
381)
|
= |
-16.75590547 |
| 4 |
30611 |
2426 |
- |
2485 |
= |
-59 |
* |
(135 |
/ |
381)
|
= |
-20.90551177 |
| 5 |
30613 |
2448 |
- |
2528 |
= |
-80 |
* |
(113 |
/ |
381)
|
= |
-23.72703408 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Twenty-Eighth Street Elementary
|
-61 |
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 |
31174 |
2390 |
- |
2436 |
= |
-46 |
* |
(127 |
/ |
390)
|
= |
-14.97948715 |
| 4 |
31175 |
2405 |
- |
2485 |
= |
-80 |
* |
(129 |
/ |
390)
|
= |
-26.4615384 |
| 5 |
31177 |
2454 |
- |
2528 |
= |
-74 |
* |
(134 |
/ |
390)
|
= |
-25.42564098 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Twenty-Eighth Street Elementary
|
-67 |
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 |
31220 |
2376 |
- |
2436 |
= |
-60 |
* |
(103 |
/ |
351)
|
= |
-17.60683758 |
| 4 |
31222 |
2429 |
- |
2485 |
= |
-56 |
* |
(126 |
/ |
351)
|
= |
-20.10256405 |
| 5 |
31224 |
2441 |
- |
2528 |
= |
-87 |
* |
(122 |
/ |
351)
|
= |
-30.23931619 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Twenty-Eighth Street Elementary
|
-68 |
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 |
31396 |
2384 |
- |
2436 |
= |
-52 |
* |
(108 |
/ |
327)
|
= |
-17.17431191 |
| 4 |
31397 |
2428 |
- |
2485 |
= |
-57 |
* |
(90 |
/ |
327)
|
= |
-15.68807335 |
| 5 |
31398 |
2446 |
- |
2528 |
= |
-82 |
* |
(129 |
/ |
327)
|
= |
-32.34862378 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Twenty-Eighth Street Elementary
|
-65 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-69
|
-61
|
-67
|
-68
|
-65
|
-330.0 |
-66.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -57.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -75.0
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:
