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 |
878562 |
2371 |
- |
2436 |
= |
-65 |
* |
(28 |
/ |
107)
|
= |
-17.00934573 |
| 4 |
878563 |
2426 |
- |
2485 |
= |
-59 |
* |
(45 |
/ |
107)
|
= |
-24.81308407 |
| 5 |
878566 |
2464 |
- |
2528 |
= |
-64 |
* |
(34 |
/ |
107)
|
= |
-20.33644858 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Brockton Avenue Elementary
|
-62 |
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 |
27795 |
2395 |
- |
2436 |
= |
-41 |
* |
(19 |
/ |
92)
|
= |
-8.4673913 |
| 4 |
27797 |
2401 |
- |
2485 |
= |
-84 |
* |
(27 |
/ |
92)
|
= |
-24.65217384 |
| 5 |
27799 |
2464 |
- |
2528 |
= |
-64 |
* |
(46 |
/ |
92)
|
= |
-32.0 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Brockton Avenue Elementary
|
-65 |
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 |
28366 |
2373 |
- |
2436 |
= |
-63 |
* |
(29 |
/ |
81)
|
= |
-22.55555553 |
| 4 |
28367 |
2405 |
- |
2485 |
= |
-80 |
* |
(23 |
/ |
81)
|
= |
-22.71604936 |
| 5 |
28370 |
2449 |
- |
2528 |
= |
-79 |
* |
(29 |
/ |
81)
|
= |
-28.28395059 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Brockton Avenue Elementary
|
-74 |
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 |
28417 |
2398 |
- |
2436 |
= |
-38 |
* |
(43 |
/ |
98)
|
= |
-16.67346938 |
| 4 |
28418 |
2402 |
- |
2485 |
= |
-83 |
* |
(31 |
/ |
98)
|
= |
-26.25510199 |
| 5 |
28421 |
2502 |
- |
2528 |
= |
-26 |
* |
(24 |
/ |
98)
|
= |
-6.36734693 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Brockton Avenue 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 |
28596 |
2396 |
- |
2436 |
= |
-40 |
* |
(30 |
/ |
102)
|
= |
-11.76470588 |
| 4 |
28597 |
2433 |
- |
2485 |
= |
-52 |
* |
(38 |
/ |
102)
|
= |
-19.37254899 |
| 5 |
28598 |
2480 |
- |
2528 |
= |
-48 |
* |
(34 |
/ |
102)
|
= |
-15.99999998 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Brockton Avenue Elementary
|
-47 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-62
|
-65
|
-74
|
-49
|
-47
|
-297.0 |
-59.4 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -26.4
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -92.4
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:
