Dynamic Indicators of Early Basic Literacy Skills: Nonsense Word Fluency, 6th Edition (DIBELS–NWF) |
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Cost |
Technology, Human Resources, and Accommodations for Special Needs |
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Purpose & Other Implementation Information |
Usage & Reporting |
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Annual cost per student for Sopris West materials: Package One: $2.36 per student for year 1 and $1.40 per student for subsequent years. This price includes materials for all grade level DIBELS measures. Package Two: $59.00 for the complete kit for year 1 and $35.00 for subsequent years. This includes pre-printed benchmark, progress monitoring, and Administration and Scoring Guide materials for 25 students. Storage & Reporting Option: $1.00 per student per year for DIBELS data system to maintain, summarize, and report scores. This includes benchmark, progress monitoring, and unlimited reports. Forms and materials can be downloaded and photocopied for free from the DIBELS website . |
Internet access is required for full use of product services. Testers will require 1-4 hours of training. Paraprofessionals can administer the test. Accommodations: A list of DIBELS approved accommodations is available in the Administration and Scoring Guide (e.g., giving directions in the student’s primary language or sign language). A Braille edition of stimulus materials may also be used if a student has sufficient skills with Braille. Scores for the Braille edition may not be directly comparable. |
Dynamic Measurement Group, Inc. Palm Pilot version available at: http://wirelessgeneration.com Field tested training manuals are available and should provide all implementation information. A web-based tutorial is included. Technical assistance is available at the DIBELS website. |
The DIBELS–NWF is a standardized, individually administered test of alphabetic principle including letter-sound correspondence and of the ability to blend letters into words in which letters represent their most common sounds for students in grades K-2. The student is presented with randomly ordered V owel-Consonant (e.g., ig, ot) and C onsonant-Vowel - Consonant (e.g., sim, tob, lut) nonsense words on an 8.5”x11” sheet of paper and asked to verbally produce the individual letter sound of each letter or verbally produce, or read, the whole nonsense word. For example, if the stimulus word is “vaj” the student could say, /v/ /a/ /j/ or say the word “vaj” to obtain a total of three letter-sounds correct. The student is allowed one minute to produce as many letter-sounds as he/she can, and the final score is the number of letter-sounds produced correctly in one minute. The tool provides information on student performance in English. The test was normed using a nationally representative sample of 39,000 Kindergartners and 37,000 first graders. |
DIBELS–NWF takes 2 minutes per probe to administer to individual students. 26 alternate forms are available for progress monitoring. Raw, percentile, and developmental benchmark scores are available. Raw scores are calculated by adding the number of letter-sounds produced correctly in one minute. A composite score is provided along with instructional recommendations obtained by calculating the odds of achieving subsequent literacy outcomes from longitudinal research. The benchmark goal is 50 correct letter sounds by the middle of first grade. Benchmark goals are based on odds of achieving subsequent early literacy goals. |