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 |
955207 |
2394 |
- |
2436 |
= |
-42 |
* |
(95 |
/ |
269)
|
= |
-14.83271374 |
| 4 |
955208 |
2405 |
- |
2485 |
= |
-80 |
* |
(95 |
/ |
269)
|
= |
-28.25278808 |
| 5 |
955211 |
2437 |
- |
2528 |
= |
-91 |
* |
(79 |
/ |
269)
|
= |
-26.72490703 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Seventy-Fourth Street Elementary
|
-70 |
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 |
30219 |
2385 |
- |
2436 |
= |
-51 |
* |
(108 |
/ |
296)
|
= |
-18.60810806 |
| 4 |
30221 |
2429 |
- |
2485 |
= |
-56 |
* |
(90 |
/ |
296)
|
= |
-17.02702702 |
| 5 |
30222 |
2417 |
- |
2528 |
= |
-111 |
* |
(98 |
/ |
296)
|
= |
-36.74999999 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Seventy-Fourth Street 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 |
30784 |
2390 |
- |
2436 |
= |
-46 |
* |
(100 |
/ |
294)
|
= |
-15.64625848 |
| 4 |
30786 |
2404 |
- |
2485 |
= |
-81 |
* |
(109 |
/ |
294)
|
= |
-30.03061222 |
| 5 |
30788 |
2430 |
- |
2528 |
= |
-98 |
* |
(85 |
/ |
294)
|
= |
-28.33333331 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Seventy-Fourth Street 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 |
30831 |
2394 |
- |
2436 |
= |
-42 |
* |
(74 |
/ |
278)
|
= |
-11.1798561 |
| 4 |
30833 |
2440 |
- |
2485 |
= |
-45 |
* |
(102 |
/ |
278)
|
= |
-16.51079133 |
| 5 |
30834 |
2422 |
- |
2528 |
= |
-106 |
* |
(102 |
/ |
278)
|
= |
-38.89208624 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Seventy-Fourth Street Elementary
|
-67 |
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 |
31006 |
2412 |
- |
2436 |
= |
-24 |
* |
(82 |
/ |
241)
|
= |
-8.16597509 |
| 4 |
31007 |
2447 |
- |
2485 |
= |
-38 |
* |
(66 |
/ |
241)
|
= |
-10.406639 |
| 5 |
31008 |
2445 |
- |
2528 |
= |
-83 |
* |
(93 |
/ |
241)
|
= |
-32.02904563 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Seventy-Fourth Street Elementary
|
-51 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-70
|
-72
|
-74
|
-67
|
-51
|
-334.0 |
-66.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -39.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -93.8
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:
