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 |
958468 |
2393 |
- |
2436 |
= |
-43 |
* |
(122 |
/ |
487)
|
= |
-10.77207392 |
| 4 |
958471 |
2420 |
- |
2485 |
= |
-65 |
* |
(125 |
/ |
487)
|
= |
-16.68377822 |
| 5 |
958472 |
2437 |
- |
2528 |
= |
-91 |
* |
(111 |
/ |
487)
|
= |
-20.7412731 |
| 6 |
958475 |
2439 |
- |
2552 |
= |
-113 |
* |
(129 |
/ |
487)
|
= |
-29.93223812 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Sixty-Sixth Street Elementary
|
-78 |
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 |
30327 |
2392 |
- |
2436 |
= |
-44 |
* |
(121 |
/ |
470)
|
= |
-11.32765955 |
| 4 |
30328 |
2419 |
- |
2485 |
= |
-66 |
* |
(122 |
/ |
470)
|
= |
-17.13191489 |
| 5 |
30330 |
2432 |
- |
2528 |
= |
-96 |
* |
(128 |
/ |
470)
|
= |
-26.1446808 |
| 6 |
30333 |
2463 |
- |
2552 |
= |
-89 |
* |
(99 |
/ |
470)
|
= |
-18.74680843 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Sixty-Sixth Street Elementary
|
-73 |
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 |
30891 |
2409 |
- |
2436 |
= |
-27 |
* |
(125 |
/ |
469)
|
= |
-7.19616204 |
| 4 |
30893 |
2436 |
- |
2485 |
= |
-49 |
* |
(113 |
/ |
469)
|
= |
-11.80597013 |
| 5 |
30896 |
2444 |
- |
2528 |
= |
-84 |
* |
(115 |
/ |
469)
|
= |
-20.59701487 |
| 6 |
30897 |
2462 |
- |
2552 |
= |
-90 |
* |
(116 |
/ |
469)
|
= |
-22.26012786 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Sixty-Sixth Street Elementary
|
-62 |
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 |
30938 |
2388 |
- |
2436 |
= |
-48 |
* |
(116 |
/ |
457)
|
= |
-12.18380741 |
| 4 |
30940 |
2434 |
- |
2485 |
= |
-51 |
* |
(119 |
/ |
457)
|
= |
-13.28008752 |
| 5 |
30942 |
2437 |
- |
2528 |
= |
-91 |
* |
(113 |
/ |
457)
|
= |
-22.50109407 |
| 6 |
30944 |
2490 |
- |
2552 |
= |
-62 |
* |
(109 |
/ |
457)
|
= |
-14.78774617 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Sixty-Sixth Street Elementary
|
-63 |
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 |
31115 |
2405 |
- |
2436 |
= |
-31 |
* |
(106 |
/ |
420)
|
= |
-7.82380951 |
| 4 |
31116 |
2457 |
- |
2485 |
= |
-28 |
* |
(116 |
/ |
420)
|
= |
-7.73333333 |
| 5 |
31117 |
2452 |
- |
2528 |
= |
-76 |
* |
(104 |
/ |
420)
|
= |
-18.81904757 |
| 6 |
31118 |
2466 |
- |
2552 |
= |
-86 |
* |
(94 |
/ |
420)
|
= |
-19.24761898 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Sixty-Sixth Street Elementary
|
-54 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-78
|
-73
|
-62
|
-63
|
-54
|
-330.0 |
-66.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -39.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -93.0
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:
