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 |
85591 |
2350 |
- |
2436 |
= |
-86 |
* |
(77 |
/ |
194)
|
= |
-34.13402058 |
| 4 |
85592 |
2400 |
- |
2485 |
= |
-85 |
* |
(50 |
/ |
194)
|
= |
-21.90721643 |
| 5 |
85595 |
2402 |
- |
2528 |
= |
-126 |
* |
(67 |
/ |
194)
|
= |
-43.51546382 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Allendale Elementary
|
-100 |
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 |
2396 |
2427 |
- |
2436 |
= |
-9 |
* |
(39 |
/ |
152)
|
= |
-2.30921052 |
| 4 |
2397 |
2391 |
- |
2485 |
= |
-94 |
* |
(65 |
/ |
152)
|
= |
-40.19736833 |
| 5 |
2400 |
2390 |
- |
2528 |
= |
-138 |
* |
(48 |
/ |
152)
|
= |
-43.57894727 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Allendale Elementary
|
-86 |
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 |
2467 |
2410 |
- |
2436 |
= |
-26 |
* |
(50 |
/ |
158)
|
= |
-8.2278481 |
| 4 |
2470 |
2427 |
- |
2485 |
= |
-58 |
* |
(43 |
/ |
158)
|
= |
-15.78481008 |
| 5 |
2471 |
2422 |
- |
2528 |
= |
-106 |
* |
(65 |
/ |
158)
|
= |
-43.60759493 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Allendale Elementary
|
-68 |
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 |
2472 |
2382 |
- |
2436 |
= |
-54 |
* |
(59 |
/ |
149)
|
= |
-21.38255032 |
| 4 |
2474 |
2405 |
- |
2485 |
= |
-80 |
* |
(51 |
/ |
149)
|
= |
-27.38255032 |
| 5 |
2476 |
2425 |
- |
2528 |
= |
-103 |
* |
(39 |
/ |
149)
|
= |
-26.9597315 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Allendale Elementary
|
-76 |
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 |
2493 |
2372 |
- |
2436 |
= |
-64 |
* |
(65 |
/ |
177)
|
= |
-23.50282483 |
| 4 |
2494 |
2395 |
- |
2485 |
= |
-90 |
* |
(60 |
/ |
177)
|
= |
-30.5084745 |
| 5 |
2495 |
2411 |
- |
2528 |
= |
-117 |
* |
(52 |
/ |
177)
|
= |
-34.37288127 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Allendale Elementary
|
-88 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-100
|
-86
|
-68
|
-76
|
-88
|
-418.0 |
-83.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -47.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -119.6
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:
