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Batya Elbaum, NCSEAM Pam Roush, West Virginia Part C OSEP National Early Childhood Meeting

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How to Explain the Numbers: Helping Staff, Parents, and Other Stakeholders Understand the Results of the NCSEAM Surveys for Part C and 619. Batya Elbaum, NCSEAM Pam Roush, West Virginia Part C OSEP National Early Childhood Meeting Arlington, VA, December 2007. Purpose of the session.

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How to Explain the Numbers:Helping Staff, Parents, and Other Stakeholders Understand the Results of the NCSEAM Surveys for Part C and 619

Batya Elbaum, NCSEAM

Pam Roush, West Virginia Part C

OSEP National Early Childhood Meeting

Arlington, VA, December 2007

purpose of the session
Purpose of the session
  • To provide participants with strategies for explaining the measures and percentages that come from the NCSEAM rating scales addressing Indicators C4 and B8.
part c indicator 4
Part C Indicator #4

“Percent of families participating in Part C who report that early intervention services have helped the family a) know their rights, b) effectively communicate their children’s needs, and c) help their children develop and learn.”

part b indicator 8
Part B Indicator #8

“Percent of parents with a child receiving special education services who report that schools facilitated parent involvement as a means of improving services and results for children with disabilities.”

wv part c indicator 4
WV Part C Indicator 4
  • 4A – Know rights
    • 2006 76.5%
    • 2007 73.8%
  • 4B – Communicate
    • 2006 72.8%
    • 2007 71.0%
  • 4C – Help child
    • 2006 86.3%
    • 2007 78.7%
why use a measurement analysis1
Why use a measurement analysis?
  • Use of a measurement framework ensures that measures will mean the same thing, regardless of how many items, or which specific items, are administered.
why use a measurement analysis2
Why use a measurement analysis?
  • We can’t assume that all survey items are equally agreeable.
  • A measurement analysis gives us a measure of each item’s overall agreeability.
why use a measurement analysis3
Why use a measurement analysis?
  • Use of a measurement framework allows us to test whether all the items are measuring the same thing.
measuring the 3 subindicators
Measuring the 3 subindicators
  • NCSEAM’s measurement analysis of pilot data from thousands of families showed that items that are related to the three OSEP outcomes all fit into a single scale of family outcomes.
measuring the 3 subindicators1
Measuring the 3 subindicators
  • Families appear to achieve these outcomes in a very consistent order.
    • Families who report that EI helped them know their rights also report that EI also helped them help their child develop and learn.
    • Families who report that EI helped them effectively communicate their children’s needs also report that EI also helped them know their rights and help their child develop and learn.
location of key items related to indicator c4
Location of key items related to Indicator C4

Indicator 4b: Effectively communicate their children’s needs.

IFS Item: “Communicate more effectively with the people who work with my child and family.” [556]

556

Indicator 4a: Know their rights.

IFS Item: “Know about my child\'s and family\'s rights concerning Early Intervention services.” [539]

539

Indicator 4c: Help their children develop and learn.

IFS items: “Understand my child\'s special needs.” [516] “Do things with and for my child that are good for my child\'s development.” [498]

516

why use a measurement analysis4
Why use a measurement analysis?
  • We can’t assume that the response choices (very strongly disagree, strongly disagree, disagree, agree, strongly agree, very strongly agree) indicated by equidistant circles or numbers on a page are really equidistant.
choice of instruments part b
Choice of instruments: Part B
  • NCSEAM K-12 and 619 9
  • NCSEAM K-12 21
  • Customized NCSEAM survey 11
  • State-developed or adapted 18
  • ECO Family Outcomes Survey 1
choice of instruments part c
Choice of instruments: Part C
  • NCSEAM Survey 25
  • ECO Family Outcomes Survey 18
  • State-developed or adapted 10
  • Combination 1
slide33
APR Family Outcome Results – Part C States Using NCSEAM Survey and RASCH analysisAPRs submitted February 2007
slide36

What is the relationship between % at or above the NCSEAM standard and % agreement on the “threshold item?”

sample descriptive interpretation related to indicator 4a
Sample descriptive interpretation related to Indicator 4A
  • Approximately 90-95% of families agreed, with approximately two-thirds of families expressing strong or very strong agreement, that early intervention helped them:
  • Understand their child’s special needs.
  • Do things with and for their child that are good for their child’s development.
  • Feel that they can handle the challenges of parenting a child with special needs.
the ncseam standard is a stringent standard
The NCSEAM standard is a stringent standard
  • Cut score for B at 600
  • Cut scores for C at 539, 516, 556
  • The standard is set so as to ensure that approximately 95% or more of the responses will be in one of the agree categories on the item designated as the “threshold item”
  • Simple agreement with the “threshold item” is not enough
error in estimation
Error in estimation
  • Whenever data are based on a sample (whether owing to sampling or to a less than 100% return rate), there is some amount of error in generalizing to the population.
  • “Error,” or imprecision, can be represented by a confidence interval.
  • As sample size decreases, error of estimate - and its representation as a confidence interval - increases.
  • The decrease is not linear!
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