What is IDEL?

Indicadores Dinámicos del Éxito en la Lectura (IDEL™) are measures developed to evaluate students’ performance in beginning reading skills in Spanish. Through this new assessment, the power of DIBELS® is expanded to measure the reading skills of young Spanish-speaking readers. IDEL measures reflect the fact that Spanish, like English, is an alphabetic language, but that Spanish, unlike English, has a regular orthography in which letter sound correspondence is more transparent. 



  • Benchmark materials for grades K–3 
  • Administered three times a year
  • Progress monitoring measures for grades 1–3 can be given as often as necessary 
    to determine the effectiveness of any intervention program
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