WWC review of this study

Using Repeated Reading and Explicit Instruction to Teach Vocabulary to Preschoolers with Hearing Loss

Bobzien, Jonna L.; Richels, Corrin; Schwartz, Kathryn; Raver, Sharon A.; Hester, Peggy; Morin, Lisa (2015). Infants and Young Children, v28 n3 p262-280. Retrieved from: https://eric.ed.gov/?id=EJ1065255

  •  examining 
    4
     Students
    , grade
    PK

Reviewed: March 2026

At least one finding shows promising evidence of effectiveness
Meets WWC standards without reservations

To view more detailed information about the study findings from this review, please download findings data here.



Evidence Tier rating based solely on this study. This intervention may achieve a higher tier when combined with the full body of evidence.

Characteristics of study sample as reported by study author.


  • Female: 25%
    Male: 75%
  • Race
    Black
    25%
    Two or more races
    25%
    White
    50%
  • Ethnicity
    Other or unknown    
    100%
  • Eligible for Free and Reduced Price Lunch
    Other or unknown    
    100%

Setting

The study took place in a public preschool classroom during a full-day preschool program that used an oral communication approach and no sign language. The authors did not report the geographic location of the preschool.

Study sample

Participants included four students from one preschool classroom, all of whom had congenital hearing loss, received speech language services, and either used hearing aids or had cochlear implants. The sample included a 4-year-old African American boy, a 3-year-old Chinese Caucasian girl, a 5-year-old Caucasian boy, and a 3-year-old Caucasian boy. The study did not report other demographic information.

Intervention Group

Researchers implemented a supplemental vocabulary intervention for preschoolers which combined repeated storybook reading with four explicit instructional strategies: verbal expansions, word definitions and elaborations, cloze procedures, and individual/choral responding. For verbal expansions, the teacher expanded on students' words or utterances to elicit a response. For word definitions and elaborations, the teacher defined words and showed how they are used. Cloze procedures involved giving students an incomplete sentence and asking them to finish it with an instructional word. For individual/choral responding, the teacher asked questions or provided directions that gave students the opportunity to say words out loud. Over the course of each student's intervention phase, the teacher read the same Fly Guy book daily, embedding these strategies to teach six target vocabulary words per book. Instruction continued until each child reached mastery (100% correct responses across two consecutive sessions). During each session, the teacher sat on the carpet with students in front of her in a semicircle as she read an intervention storybook using the four explicit teaching strategies to teach six instructional vocabulary words and phrases. Immediately following story-book reading, which took approximately 15–30 min, the focal participant was probed individually using randomly identified pages from the selected storybook.

Comparison Group

There is no comparison group in single-case designs. In the baseline phase, a teacher or paraeducator read a non-intervention storybook aloud to the group without providing any instruction or elaboration. Baseline storybooks were read for only 1 day. In the initial baseline sessions for each student, the teacher sat on the carpet with students in front of her in a semicircle as she read the book. The teacher then conducted one-on-one vocabulary probes with each child, asking open-ended questions to elicit responses related to the target words. After Child 1 started receiving the intervention, baseline sessions were conducted by a paraeducator in a separate area of the classroom, with visual and auditory barriers in place to minimize distraction and prevent exposure to the intervention. Baseline data collection continued until each child’s responses were stable, indicating no therapeutic trend, before transitioning into the intervention phase.

Support for implementation

A teacher with a master's degree in Deaf Education and a "Listening and Spoken Language Auditory Verbal Educator" certification administered the intervention. The teacher and two paraprofessionals checked the hearing devices or cochlear implants of all students each day to ensure proper functionality.

 

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