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The Dynamic Indicators of Basic Early Literacy Skills (DIBELS) are a set of procedures and measures for assessing the acquisition of early literacy skills from kindergarten through sixth grade. They are designed to be short (one minute) fluency measures used to regularly monitor the development of early literacy and early reading skills.
Measures of Phonological Awareness:
  • Initial Sounds Fluency (ISF): Assesses a child's skill at identifying and producing the initial sound of a given word.
  • Phonemic Segmentation Fluency (PSF): Assesses a child's skill at producing the individual sounds within a given word.

Measure of Alphabetic Principle and Phonics:

  • Nonsense Word Fluency (NWF): Assesses a child's knowledge of letter-sound correspondences as well their ability to blend letters together to form unfamiliar "nonsense" (e.g., ut, fik, lig, etc.) words.
  • Oral Reading Fluency (ORF): If accuracy is less than 95%.

Measure of Accuracy and Fluency with Connected Text:

  • Oral Reading Fluency (ORF): Assesses a child's skill at reading connected text in grade-level materials.

Measure of Comprehension:

  • Oral Reading Fluency (ORF) and Retell Fluency (RTF): Assesses a child's understanding of verbally read connected text.

Measure of Vocabulary and Oral Language:

  • Word Use Fluency (WUF): Assesses a child's ability to accurately use a provided word in the context of a sentence.