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 |
2369182 |
2421 |
- |
2436 |
= |
-15 |
* |
(107 |
/ |
313)
|
= |
-5.12779553 |
| 4 |
2369183 |
2461 |
- |
2485 |
= |
-24 |
* |
(107 |
/ |
313)
|
= |
-8.20447284 |
| 5 |
2369186 |
2490 |
- |
2528 |
= |
-38 |
* |
(99 |
/ |
313)
|
= |
-12.0191693 |
| Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Longfellow Elementary
|
-25 |
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 |
72374 |
2403 |
- |
2436 |
= |
-33 |
* |
(109 |
/ |
321)
|
= |
-11.20560745 |
| 4 |
72376 |
2440 |
- |
2485 |
= |
-45 |
* |
(108 |
/ |
321)
|
= |
-15.14018691 |
| 5 |
72377 |
2483 |
- |
2528 |
= |
-45 |
* |
(104 |
/ |
321)
|
= |
-14.57943921 |
| Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Longfellow Elementary
|
-41 |
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 |
74347 |
2423 |
- |
2436 |
= |
-13 |
* |
(18 |
/ |
189)
|
= |
-1.23809524 |
| 4 |
74349 |
2426 |
- |
2485 |
= |
-59 |
* |
(77 |
/ |
189)
|
= |
-24.03703701 |
| 5 |
74351 |
2474 |
- |
2528 |
= |
-54 |
* |
(94 |
/ |
189)
|
= |
-26.85714284 |
| Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Longfellow Elementary
|
-52 |
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 |
74521 |
2416 |
- |
2436 |
= |
-20 |
* |
(55 |
/ |
220)
|
= |
-5.0 |
| 4 |
74524 |
2453 |
- |
2485 |
= |
-32 |
* |
(63 |
/ |
220)
|
= |
-9.16363635 |
| 5 |
74525 |
2458 |
- |
2528 |
= |
-70 |
* |
(102 |
/ |
220)
|
= |
-32.45454541 |
| Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Longfellow Elementary
|
-47 |
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 |
75047 |
2405 |
- |
2436 |
= |
-31 |
* |
(76 |
/ |
248)
|
= |
-9.49999997 |
| 4 |
75048 |
2444 |
- |
2485 |
= |
-41 |
* |
(82 |
/ |
248)
|
= |
-13.5564516 |
| 5 |
75049 |
2443 |
- |
2528 |
= |
-85 |
* |
(90 |
/ |
248)
|
= |
-30.84677413 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Longfellow Elementary
|
-54 |
Last steps
Compute the average
| 2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
|
-25
|
-41
|
-52
|
-47
|
-54
|
-219.0 |
-43.8 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -10.8
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -76.8
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:
