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 |
329202 |
2397 |
- |
2436 |
= |
-39 |
* |
(99 |
/ |
392)
|
= |
-9.84948978 |
| 4 |
329203 |
2421 |
- |
2485 |
= |
-64 |
* |
(107 |
/ |
392)
|
= |
-17.46938771 |
| 5 |
329206 |
2447 |
- |
2528 |
= |
-81 |
* |
(84 |
/ |
392)
|
= |
-17.35714283 |
| 6 |
329207 |
2449 |
- |
2552 |
= |
-103 |
* |
(102 |
/ |
392)
|
= |
-26.80102034 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Mayfair Elementary
|
-71 |
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 |
9824 |
2413 |
- |
2436 |
= |
-23 |
* |
(74 |
/ |
367)
|
= |
-4.63760217 |
| 4 |
9825 |
2419 |
- |
2485 |
= |
-66 |
* |
(106 |
/ |
367)
|
= |
-19.06267024 |
| 5 |
9828 |
2439 |
- |
2528 |
= |
-89 |
* |
(103 |
/ |
367)
|
= |
-24.97820155 |
| 6 |
9829 |
2451 |
- |
2552 |
= |
-101 |
* |
(84 |
/ |
367)
|
= |
-23.11716613 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Mayfair Elementary
|
-72 |
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 |
10152 |
2412 |
- |
2436 |
= |
-24 |
* |
(104 |
/ |
379)
|
= |
-6.58575197 |
| 4 |
10153 |
2428 |
- |
2485 |
= |
-57 |
* |
(77 |
/ |
379)
|
= |
-11.58047488 |
| 5 |
10156 |
2436 |
- |
2528 |
= |
-92 |
* |
(94 |
/ |
379)
|
= |
-22.81794194 |
| 6 |
10158 |
2448 |
- |
2552 |
= |
-104 |
* |
(104 |
/ |
379)
|
= |
-28.53825853 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Mayfair Elementary
|
-70 |
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 |
10170 |
2423 |
- |
2436 |
= |
-13 |
* |
(110 |
/ |
378)
|
= |
-3.78306878 |
| 4 |
10172 |
2446 |
- |
2485 |
= |
-39 |
* |
(99 |
/ |
378)
|
= |
-10.21428568 |
| 5 |
10174 |
2449 |
- |
2528 |
= |
-79 |
* |
(67 |
/ |
378)
|
= |
-14.00264548 |
| 6 |
10176 |
2448 |
- |
2552 |
= |
-104 |
* |
(102 |
/ |
378)
|
= |
-28.06349198 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Mayfair Elementary
|
-56 |
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 |
10250 |
2450 |
- |
2436 |
= |
14 |
* |
(87 |
/ |
355)
|
= |
3.43098591 |
| 4 |
10251 |
2455 |
- |
2485 |
= |
-30 |
* |
(109 |
/ |
355)
|
= |
-9.21126759 |
| 5 |
10252 |
2445 |
- |
2528 |
= |
-83 |
* |
(92 |
/ |
355)
|
= |
-21.50985911 |
| 6 |
10253 |
2454 |
- |
2552 |
= |
-98 |
* |
(67 |
/ |
355)
|
= |
-18.49577461 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Mayfair Elementary
|
-46 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-71
|
-72
|
-70
|
-56
|
-46
|
-315.0 |
-63.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -30.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -96.0
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:
