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 |
11 |
2222227 |
2576 |
- |
2628 |
= |
-52 |
* |
(113 |
/ |
113)
|
= |
-52.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2015 Difference From Standard for San Diego Science and Technology
|
-52 |
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 |
11 |
68155 |
2545 |
- |
2628 |
= |
-83 |
* |
(140 |
/ |
140)
|
= |
-83.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2016 Difference From Standard for San Diego Science and Technology
|
-83 |
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 |
11 |
69972 |
2540 |
- |
2628 |
= |
-88 |
* |
(128 |
/ |
128)
|
= |
-88.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2017 Difference From Standard for San Diego Science and Technology
|
-88 |
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 |
11 |
70131 |
2530 |
- |
2628 |
= |
-98 |
* |
(124 |
/ |
124)
|
= |
-98.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2018 Difference From Standard for San Diego Science and Technology
|
-98 |
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 |
11 |
70645 |
2494 |
- |
2628 |
= |
-134 |
* |
(145 |
/ |
145)
|
= |
-134.0 |
Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for San Diego Science and Technology
|
-134 |
Last steps
Compute the average
2015 |
2016 |
2017 |
2018 |
2019 |
Sum |
Average |
-52
|
-83
|
-88
|
-98
|
-134
|
-455.0 |
-91.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average: -4.0
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average: -178.0
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: