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 |
954917 |
2381 |
- |
2436 |
= |
-55 |
* |
(147 |
/ |
520)
|
= |
-15.54807689 |
| 4 |
954918 |
2414 |
- |
2485 |
= |
-71 |
* |
(132 |
/ |
520)
|
= |
-18.02307686 |
| 5 |
954921 |
2456 |
- |
2528 |
= |
-72 |
* |
(122 |
/ |
520)
|
= |
-16.89230765 |
| 6 |
954922 |
2452 |
- |
2552 |
= |
-100 |
* |
(119 |
/ |
520)
|
= |
-22.8846153 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Seventy-Fifth Street Elementary
|
-73 |
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 |
30208 |
2405 |
- |
2436 |
= |
-31 |
* |
(148 |
/ |
545)
|
= |
-8.41834862 |
| 4 |
30210 |
2432 |
- |
2485 |
= |
-53 |
* |
(159 |
/ |
545)
|
= |
-15.46238531 |
| 5 |
30213 |
2418 |
- |
2528 |
= |
-110 |
* |
(120 |
/ |
545)
|
= |
-24.22018346 |
| 6 |
30214 |
2463 |
- |
2552 |
= |
-89 |
* |
(118 |
/ |
545)
|
= |
-19.26972473 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Seventy-Fifth Street Elementary
|
-67 |
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 |
30774 |
2398 |
- |
2436 |
= |
-38 |
* |
(147 |
/ |
573)
|
= |
-9.74869108 |
| 4 |
30775 |
2411 |
- |
2485 |
= |
-74 |
* |
(153 |
/ |
573)
|
= |
-19.75916224 |
| 5 |
30778 |
2424 |
- |
2528 |
= |
-104 |
* |
(160 |
/ |
573)
|
= |
-29.04013954 |
| 6 |
30780 |
2441 |
- |
2552 |
= |
-111 |
* |
(113 |
/ |
573)
|
= |
-21.89005226 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Seventy-Fifth Street Elementary
|
-80 |
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 |
30821 |
2414 |
- |
2436 |
= |
-22 |
* |
(130 |
/ |
552)
|
= |
-5.18115941 |
| 4 |
30823 |
2449 |
- |
2485 |
= |
-36 |
* |
(143 |
/ |
552)
|
= |
-9.32608696 |
| 5 |
30825 |
2432 |
- |
2528 |
= |
-96 |
* |
(146 |
/ |
552)
|
= |
-25.39130429 |
| 6 |
30827 |
2449 |
- |
2552 |
= |
-103 |
* |
(133 |
/ |
552)
|
= |
-24.81702888 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Seventy-Fifth Street Elementary
|
-65 |
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 |
30997 |
2397 |
- |
2436 |
= |
-39 |
* |
(134 |
/ |
534)
|
= |
-9.78651683 |
| 4 |
30998 |
2445 |
- |
2485 |
= |
-40 |
* |
(144 |
/ |
534)
|
= |
-10.78651684 |
| 5 |
30999 |
2449 |
- |
2528 |
= |
-79 |
* |
(132 |
/ |
534)
|
= |
-19.52808987 |
| 6 |
31000 |
2454 |
- |
2552 |
= |
-98 |
* |
(124 |
/ |
534)
|
= |
-22.75655423 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Seventy-Fifth Street Elementary
|
-63 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-73
|
-67
|
-80
|
-65
|
-63
|
-348.0 |
-69.6 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -51.6
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -87.6
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:
