Is "Response/No Response" Too Simple a Notion for RTI Frameworks? Exploring Multiple Response Types With Latent...

Area of Science:

• Education
• Psychology
• Cognitive Science

Background:

• Early reading interventions are crucial for at-risk students.
• A binary response/no response model may oversimplify student outcomes.
• Understanding nuanced response patterns can improve intervention efficacy.

Purpose of the Study:

• To investigate whether student responses to a first-grade reading program are best characterized as binary (response/no response) or more nuanced.
• To identify distinct profiles of student response to an efficacious reading intervention.
• To explore the role of pretreatment skills in predicting response patterns.

Main Methods:

• Secondary analysis of data from a randomized control trial involving 265 at-risk first-grade readers.
• Latent profile analysis of word reading data collected at three time points (pre-intervention, post-intervention, and spring of second grade).
• Assessment of pretreatment domain-specific (letter knowledge, decoding, passage comprehension, language) and domain-general (working memory, non-verbal reasoning) skills.

Main Results:

• Four distinct response profiles emerged: strongly responsive (n=45), mildly responsive (n=109), mildly non-responsive (n=90), and strongly non-responsive (n=21).
• Responsive groups exhibited stronger pretreatment letter knowledge and passage comprehension compared to non-responsive groups.
• Pretreatment passage comprehension differentiated between the mildly and strongly non-responsive groups; no domain-general skills differentiated the four groups.

Conclusions:

• Student response to early reading intervention is more complex than a simple response/no response dichotomy.
• Pretreatment reading comprehension is a significant predictor of intervention response, even when controlling for initial word reading ability.
• Identifying nuanced response profiles can inform more targeted and effective early reading interventions.