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 |
886002 |
2406 |
- |
2436 |
= |
-30 |
* |
(100 |
/ |
286)
|
= |
-10.48951047 |
| 4 |
886005 |
2414 |
- |
2485 |
= |
-71 |
* |
(93 |
/ |
286)
|
= |
-23.08741258 |
| 5 |
886006 |
2429 |
- |
2528 |
= |
-99 |
* |
(93 |
/ |
286)
|
= |
-32.19230768 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Catskill Avenue Elementary
|
-66 |
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 |
28019 |
2411 |
- |
2436 |
= |
-25 |
* |
(96 |
/ |
280)
|
= |
-8.57142855 |
| 4 |
28020 |
2450 |
- |
2485 |
= |
-35 |
* |
(92 |
/ |
280)
|
= |
-11.49999998 |
| 5 |
28022 |
2445 |
- |
2528 |
= |
-83 |
* |
(92 |
/ |
280)
|
= |
-27.27142852 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Catskill Avenue Elementary
|
-47 |
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 |
28586 |
2424 |
- |
2436 |
= |
-12 |
* |
(97 |
/ |
276)
|
= |
-4.2173913 |
| 4 |
28587 |
2467 |
- |
2485 |
= |
-18 |
* |
(89 |
/ |
276)
|
= |
-5.80434782 |
| 5 |
28589 |
2474 |
- |
2528 |
= |
-54 |
* |
(90 |
/ |
276)
|
= |
-17.60869562 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Catskill Avenue Elementary
|
-28 |
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 |
28636 |
2418 |
- |
2436 |
= |
-18 |
* |
(77 |
/ |
245)
|
= |
-5.65714285 |
| 4 |
28638 |
2479 |
- |
2485 |
= |
-6 |
* |
(87 |
/ |
245)
|
= |
-2.13061224 |
| 5 |
28640 |
2488 |
- |
2528 |
= |
-40 |
* |
(81 |
/ |
245)
|
= |
-13.22448976 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Catskill Avenue Elementary
|
-21 |
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 |
28816 |
2418 |
- |
2436 |
= |
-18 |
* |
(57 |
/ |
214)
|
= |
-4.79439252 |
| 4 |
28817 |
2485 |
- |
2485 |
= |
0 |
* |
(72 |
/ |
214)
|
= |
0.0 |
| 5 |
28818 |
2519 |
- |
2528 |
= |
-9 |
* |
(85 |
/ |
214)
|
= |
-3.57476635 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Catskill Avenue Elementary
|
-8 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-66
|
-47
|
-28
|
-21
|
-8
|
-170.0 |
-34.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: 32.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -100.0
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:
