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 |
824643 |
2353 |
- |
2436 |
= |
-83 |
* |
(148 |
/ |
493)
|
= |
-24.91683564 |
| 4 |
824644 |
2391 |
- |
2485 |
= |
-94 |
* |
(126 |
/ |
493)
|
= |
-24.02434074 |
| 5 |
824647 |
2390 |
- |
2528 |
= |
-138 |
* |
(143 |
/ |
493)
|
= |
-40.02839744 |
| 6 |
824648 |
2396 |
- |
2552 |
= |
-156 |
* |
(76 |
/ |
493)
|
= |
-24.04868154 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Dr. Owen Lloyd Knox Elementary
|
-113 |
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 |
25821 |
2380 |
- |
2436 |
= |
-56 |
* |
(109 |
/ |
457)
|
= |
-13.35667396 |
| 4 |
25823 |
2401 |
- |
2485 |
= |
-84 |
* |
(147 |
/ |
457)
|
= |
-27.0196936 |
| 5 |
25824 |
2393 |
- |
2528 |
= |
-135 |
* |
(116 |
/ |
457)
|
= |
-34.26695834 |
| 6 |
25826 |
2407 |
- |
2552 |
= |
-145 |
* |
(85 |
/ |
457)
|
= |
-26.96936534 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Dr. Owen Lloyd Knox Elementary
|
-102 |
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 |
26301 |
2397 |
- |
2436 |
= |
-39 |
* |
(133 |
/ |
452)
|
= |
-11.47566369 |
| 4 |
26303 |
2405 |
- |
2485 |
= |
-80 |
* |
(105 |
/ |
452)
|
= |
-18.58407072 |
| 5 |
26305 |
2426 |
- |
2528 |
= |
-102 |
* |
(140 |
/ |
452)
|
= |
-31.59292033 |
| 6 |
26307 |
2425 |
- |
2552 |
= |
-127 |
* |
(74 |
/ |
452)
|
= |
-20.79203538 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Dr. Owen Lloyd Knox Elementary
|
-82 |
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 |
26274 |
2395 |
- |
2436 |
= |
-41 |
* |
(126 |
/ |
406)
|
= |
-12.72413791 |
| 4 |
26276 |
2426 |
- |
2485 |
= |
-59 |
* |
(120 |
/ |
406)
|
= |
-17.43842362 |
| 5 |
26278 |
2424 |
- |
2528 |
= |
-104 |
* |
(103 |
/ |
406)
|
= |
-26.38423642 |
| 6 |
26280 |
2462 |
- |
2552 |
= |
-90 |
* |
(57 |
/ |
406)
|
= |
-12.63546792 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Dr. Owen Lloyd Knox Elementary
|
-69 |
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 |
26411 |
2407 |
- |
2436 |
= |
-29 |
* |
(113 |
/ |
394)
|
= |
-8.31725887 |
| 4 |
26412 |
2416 |
- |
2485 |
= |
-69 |
* |
(121 |
/ |
394)
|
= |
-21.19035526 |
| 5 |
26413 |
2422 |
- |
2528 |
= |
-106 |
* |
(114 |
/ |
394)
|
= |
-30.67005071 |
| 6 |
26414 |
2443 |
- |
2552 |
= |
-109 |
* |
(46 |
/ |
394)
|
= |
-12.72588832 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Dr. Owen Lloyd Knox Elementary
|
-73 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-113
|
-102
|
-82
|
-69
|
-73
|
-439.0 |
-87.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -33.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -141.8
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:
