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 |
78943 |
2354 |
- |
2436 |
= |
-82 |
* |
(80 |
/ |
190)
|
= |
-34.52631574 |
| 4 |
78944 |
2404 |
- |
2485 |
= |
-81 |
* |
(71 |
/ |
190)
|
= |
-30.26842101 |
| 5 |
78947 |
2457 |
- |
2528 |
= |
-71 |
* |
(39 |
/ |
190)
|
= |
-14.57368415 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Global Family
|
-79 |
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 |
2141 |
2343 |
- |
2436 |
= |
-93 |
* |
(70 |
/ |
211)
|
= |
-30.85308052 |
| 4 |
2144 |
2390 |
- |
2485 |
= |
-95 |
* |
(75 |
/ |
211)
|
= |
-33.76777242 |
| 5 |
2146 |
2454 |
- |
2528 |
= |
-74 |
* |
(66 |
/ |
211)
|
= |
-23.14691939 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Global Family
|
-88 |
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 |
2204 |
2341 |
- |
2436 |
= |
-95 |
* |
(78 |
/ |
220)
|
= |
-33.68181813 |
| 4 |
2205 |
2400 |
- |
2485 |
= |
-85 |
* |
(70 |
/ |
220)
|
= |
-27.04545453 |
| 5 |
2208 |
2421 |
- |
2528 |
= |
-107 |
* |
(72 |
/ |
220)
|
= |
-35.01818179 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Global Family
|
-96 |
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 |
2193 |
2347 |
- |
2436 |
= |
-89 |
* |
(63 |
/ |
207)
|
= |
-27.08695651 |
| 4 |
2195 |
2398 |
- |
2485 |
= |
-87 |
* |
(76 |
/ |
207)
|
= |
-31.94202895 |
| 5 |
2197 |
2448 |
- |
2528 |
= |
-80 |
* |
(68 |
/ |
207)
|
= |
-26.2801932 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Global Family
|
-85 |
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 |
2203 |
2330 |
- |
2436 |
= |
-106 |
* |
(75 |
/ |
209)
|
= |
-38.03827744 |
| 4 |
2204 |
2410 |
- |
2485 |
= |
-75 |
* |
(59 |
/ |
209)
|
= |
-21.17224875 |
| 5 |
2205 |
2414 |
- |
2528 |
= |
-114 |
* |
(75 |
/ |
209)
|
= |
-40.90909084 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Global Family
|
-100 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-79
|
-88
|
-96
|
-85
|
-100
|
-448.0 |
-89.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -65.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -113.6
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:
