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Welcome to the DIBELSŪ Community Forum - a place to talk about DIBELS!

Ohanian Comment: These people describe themselves as DIBELSŪ enthusiasts. Here, you can vote for your favorite DIBELS measure:

What is your favorite DIBELS measure?
You may choose only one
Initial Sound Fluency (ISF)
Letter Naming Fluency (LNF)
Phoneme Segmentation Fluency (PSF)
Nonsense Word Fluency (NWF)
DIBELS Oral Reading Fluency (ORF)
Retell Fluency (RTF)
Word Use Fluency (WUF)

And the winner is. . . (drumroll): Nonsense Word Fluency (NWF)

Honest. Who could make this up?

Here is a typical exchange:

How important is the ISF score in Kindergarten?
#180 - 02/23/06 11:39 PM

A kindergarten teacher is concerned because the ISF scores of her kindergartners overall were very low. Children she sees as low achieving scored higher on ISF than children who are reading on Levels 2 and 3. Possible reasons for this? What is the reliability of the ISF scores for kindergarten?

#209 - 03/22/06 08:48 PM

I'm sorry it has taken me so long to get back to you regarding the reliability and validity of the ISF measure, but here it goes: The alternate form reliability for ISF ranges from .65 if you administer only one probe, to .90 if you administer 3 probes. The criterion-related validity ranges from .44 to .60 when compared with published norm-referenced tests such as the Woodcock-Johnson, SDRT, MAT, TOPA, IQ tests, etc. ISF is the weakest of the DIBELS measures in terms of reliability and validity, but still pretty strong, especially when looking at at least 3 data points over time. As for why lower-achieving students are scoring higher than higher-achieving students, I would look back to the raw data and see if the lower-achieving students are in a pattern of randomly picking a picture quickly rather than carefully selecting a picture, thus resulting in a slower time and lower score.

Debby Laimon
Dynamic Measurement Group

Welcome to the DIBELSŪ Community Forum - a place to talk about DIBELS!

This is a community for DIBELS newbies, experts and enthusiasts. Created by Roland H. Good III, Ph.D. and Ruth A. Kaminski, Ph.D. of the University of Oregon, DIBELS (The Dynamic Indicators of Basic Early Literacy Skills) offers standardized, individually administered measures of early literacy for students in grades K-6.

Use of DIBELS has transcended any one school system, region, or educational philosophy; this online community represents the growing number of DIBELS users across the globe. This site is collaborative effort among all of its members and we therefore invite the ideas, input, and suggestions of all.

— discussion group


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