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 |
1543325 |
2382 |
- |
2436 |
= |
-54 |
* |
(120 |
/ |
354)
|
= |
-18.3050847 |
| 4 |
1543326 |
2423 |
- |
2485 |
= |
-62 |
* |
(131 |
/ |
354)
|
= |
-22.94350281 |
| 5 |
1543329 |
2414 |
- |
2528 |
= |
-114 |
* |
(103 |
/ |
354)
|
= |
-33.16949141 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Garfield Elementary
|
-74 |
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 |
48354 |
2409 |
- |
2436 |
= |
-27 |
* |
(124 |
/ |
373)
|
= |
-8.97587131 |
| 4 |
48356 |
2409 |
- |
2485 |
= |
-76 |
* |
(119 |
/ |
373)
|
= |
-24.24664875 |
| 5 |
48359 |
2435 |
- |
2528 |
= |
-93 |
* |
(130 |
/ |
373)
|
= |
-32.41286862 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Garfield Elementary
|
-66 |
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 |
49675 |
2428 |
- |
2436 |
= |
-8 |
* |
(127 |
/ |
385)
|
= |
-2.63896103 |
| 4 |
49677 |
2430 |
- |
2485 |
= |
-55 |
* |
(135 |
/ |
385)
|
= |
-19.28571425 |
| 5 |
49678 |
2435 |
- |
2528 |
= |
-93 |
* |
(123 |
/ |
385)
|
= |
-29.71168827 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Garfield Elementary
|
-52 |
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 |
49689 |
2420 |
- |
2436 |
= |
-16 |
* |
(100 |
/ |
340)
|
= |
-4.70588235 |
| 4 |
49691 |
2445 |
- |
2485 |
= |
-40 |
* |
(115 |
/ |
340)
|
= |
-13.52941176 |
| 5 |
49693 |
2445 |
- |
2528 |
= |
-83 |
* |
(125 |
/ |
340)
|
= |
-30.51470581 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Garfield Elementary
|
-49 |
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 |
49887 |
2428 |
- |
2436 |
= |
-8 |
* |
(135 |
/ |
339)
|
= |
-3.1858407 |
| 4 |
49888 |
2424 |
- |
2485 |
= |
-61 |
* |
(91 |
/ |
339)
|
= |
-16.37463126 |
| 5 |
49889 |
2468 |
- |
2528 |
= |
-60 |
* |
(113 |
/ |
339)
|
= |
-19.99999998 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Garfield Elementary
|
-40 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-74
|
-66
|
-52
|
-49
|
-40
|
-281.0 |
-56.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -17.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -95.2
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:
