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 |
74340 |
2320 |
- |
2436 |
= |
-116 |
* |
(42 |
/ |
183)
|
= |
-26.62295074 |
4 |
74341 |
2396 |
- |
2485 |
= |
-89 |
* |
(42 |
/ |
183)
|
= |
-20.42622944 |
5 |
74344 |
2358 |
- |
2528 |
= |
-170 |
* |
(29 |
/ |
183)
|
= |
-26.93989065 |
6 |
74345 |
2410 |
- |
2552 |
= |
-142 |
* |
(21 |
/ |
183)
|
= |
-16.29508192 |
7 |
74348 |
2436 |
- |
2567 |
= |
-131 |
* |
(27 |
/ |
183)
|
= |
-19.32786877 |
8 |
74349 |
2436 |
- |
2586 |
= |
-150 |
* |
(22 |
/ |
183)
|
= |
-18.03278685 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for Sankofa Academy
|
-128 |
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 |
1996 |
2338 |
- |
2436 |
= |
-98 |
* |
(36 |
/ |
165)
|
= |
-21.38181816 |
4 |
1998 |
2344 |
- |
2485 |
= |
-141 |
* |
(28 |
/ |
165)
|
= |
-23.92727263 |
5 |
1999 |
2399 |
- |
2528 |
= |
-129 |
* |
(35 |
/ |
165)
|
= |
-27.36363635 |
6 |
2002 |
2378 |
- |
2552 |
= |
-174 |
* |
(21 |
/ |
165)
|
= |
-22.1454545 |
7 |
2004 |
2435 |
- |
2567 |
= |
-132 |
* |
(19 |
/ |
165)
|
= |
-15.19999998 |
8 |
2006 |
2421 |
- |
2586 |
= |
-165 |
* |
(26 |
/ |
165)
|
= |
-25.99999991 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for Sankofa Academy
|
-136 |
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 |
2054 |
2357 |
- |
2436 |
= |
-79 |
* |
(34 |
/ |
149)
|
= |
-18.0268456 |
4 |
2055 |
2358 |
- |
2485 |
= |
-127 |
* |
(30 |
/ |
149)
|
= |
-25.57046969 |
5 |
2057 |
2383 |
- |
2528 |
= |
-145 |
* |
(28 |
/ |
149)
|
= |
-27.24832214 |
6 |
2059 |
2368 |
- |
2552 |
= |
-184 |
* |
(22 |
/ |
149)
|
= |
-27.1677851 |
7 |
2061 |
2408 |
- |
2567 |
= |
-159 |
* |
(18 |
/ |
149)
|
= |
-19.20805367 |
8 |
2063 |
2410 |
- |
2586 |
= |
-176 |
* |
(17 |
/ |
149)
|
= |
-20.08053678 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for Sankofa Academy
|
-137 |
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 |
2064 |
2351 |
- |
2436 |
= |
-85 |
* |
(24 |
/ |
65)
|
= |
-31.38461537 |
4 |
2066 |
2358 |
- |
2485 |
= |
-127 |
* |
(23 |
/ |
65)
|
= |
-44.93846143 |
5 |
2068 |
2414 |
- |
2528 |
= |
-114 |
* |
(18 |
/ |
65)
|
= |
-31.56923066 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for Sankofa Academy
|
-108 |
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 |
2073 |
2346 |
- |
2436 |
= |
-90 |
* |
(24 |
/ |
71)
|
= |
-30.42253521 |
4 |
2074 |
2376 |
- |
2485 |
= |
-109 |
* |
(23 |
/ |
71)
|
= |
-35.30985905 |
5 |
2075 |
2406 |
- |
2528 |
= |
-122 |
* |
(24 |
/ |
71)
|
= |
-41.23943662 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Sankofa Academy
|
-107 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-128
|
-136
|
-137
|
-108
|
-107
|
-616.0 |
-123.2 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -81.2
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -165.2
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: