Introduction to Data Analysis Handbook - AED Center for Early Care ...

Disabilities (continued)
Process Components Content Information
Data Analysis Take the # of children with a disability prior to enrollment
and divide it by the actual enrollment (this will provide you
with a % of children identified with a disability prior to
enrollment for each program year from 2001-2004):
2001 - 846/28157 = .030 = 3%
2002 - 927/30498 = .030 = 3%
2003 - 1059/33188 = .031 = 3.1%
2004 - 1099/33023 = .033 = 3.3%
(The percentage is a proportion that will tell us what
fraction of the total number of children identified with a
disability prior to enrollment.)
Add the percent of children identified with a disability
prior to enrollment from the years available to you (in this
example the years are 2001, 2002, 2003, 2004):
= (2001 + 2002 + 2003 + 2004) = (.03 + .03 + .031 + .033) =
.124
Divide the total by the number of years being analyzed:
= .124/4 = .031 or 3.1%
(By adding the 4 years worth of data you are determining
the average which will be used to make an estimate of the %
of children that will be enrolled in the program with a prior
disability for the upcoming year.)
in order to determine the estimate you would need to add
the actual enrollment from 2001-2004 and calculate the
average actual enrollment:
= 28,157 + 30,498 + 33,188 + 33,023 = 124,866 / 4 = 31,217
And then take the average actual enrollment and multiple it
by the % calculated above:
= 31,217 X 3.1% or 31,217 X .031 = 968
© AED/TAC-12 Spring 2006.