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IDEL Fluidez en Nombrar Letras (FNL)

Description of the FNL Measure

Fluidez en Nombrar Letras (FNL) is a standardized, individually administered test that provides a measure of risk. FNL is intended for most children from fall of kindergarten through fall of first grade. Students are presented with a page of upper- and lower-case letters arranged in a random order and are asked to name as many letters as they can. Students are told if they do not know a letter they will be told the letter. The student is allowed 1 minute to produce as many letter names as he/she can, and the score is the number of letters named correctly in 1 minute.

Although a benchmark goal is provided for FNL, it does not correspond to a big idea of early literacy skills (phonological awareness, alphabetic principle, accuracy and fluency with connected text, vocabulary, and comprehension) and, at least in English, it does not appear to be essential to achieve reading outcomes. However, students in the lowest 20 percent of a school district using local norms should be considered at risk for poor reading outcomes, and those between the 20th percentile and 40th percentile should be considered at some risk. For students at risk, the primary instructional goals should be in phonological awareness, alphabetic principle, and accuracy and fluency with connected text.

Technical Adequacy of the FNL Measure

The 3-week, alternate-form reliability of FNL in the fall of kindergarten is .91. The concurrent criterion-related validity of FNL with the Woodcock-Muñoz, Batería-R APR Destrezas Básicas is .58 at the end of Kindergarten (Watson, 2004).

How does the FNL measure link to DIBELS?

The FNL measure is similar to the DIBELS Letter Naming Fluency measure.

What are the benchmark goals for the FNL measure?

View the benchmark goals for all the IDEL measures.