Developing an evidence-based reading intervention for early brain injury rehabilitation

Efficacy of reading strategies on text-level reading comprehension in people with post-stroke chronic aphasia: A repeated measures study

BACKGROUND

People with aphasia (PWA) frequently experience difficulties in understanding longer written content such as paragraphs or books. Reading strategies are a promising approach to treat text-level reading comprehension deficits in PWA. Nevertheless, empirical evidence for their efficacy remains rare.

AIMS

The primary objective of this study was to analyse the efficacy of a strategy-based intervention on text-level reading comprehension in PWA. Secondary objectives were to compare the effects of two strategy-based intervention components and to explore potential moderator effects.

METHODS & PROCEDURES

A protocol was published prior to data acquisition. In a repeated measures trial, 26 German participants with chronic, post-stroke aphasia participated in a waiting period without aphasia treatment (control condition) followed by a strategy-based intervention called 'Strategiebasierte Textverständnis-Therapie bei Aphasie' (StraTexT, 14 face-to-face-sessions, twice per week, 60 min each). Two strategy combinations, Intervention Micro targeting microstructure and Intervention Macro targeting macrostructure, were applied to newspaper and magazine articles. Participants were randomly allocated to two parallel groups that received these strategy combinations in interchanged sequences. Assessments were implemented before and after each period as well as 3 and 6 months after the intervention. The primary outcome measure was text-level reading comprehension measured with the total score of a German version of the Test de Compréhension de Textes (TCT-D). Secondary outcome measures addressed the self-reported perception of reading abilities, reading activities and feelings about reading (German version of the Comprehensive Assessment of Reading in Aphasia CARA reading questionnaire) as well as selected cognitive functions.

OUTCOMES & RESULTS

The per-protocol-analysis included data from 22 participants. We found significant small improvements up to 6 months post-intervention compared to pre-intervention in the TCT-D Total (d  =  0.35-0.46) as well as medium to large improvements in the CARA questionnaire (d  =  0.68-0.96). Up to 3 months after the intervention, treatment-induced improvements in the TCT-D Total were significantly larger than change without treatment during the control condition. There was no evidence of moderator effects. Furthermore, we found improvements in several cognitive functions.

CONCLUSIONS & IMPLICATIONS

Reading strategies can lead to long-term improvements in text-level reading comprehension and in self-reported reading abilities, feelings about reading and reading activities in aphasia. In regular clinical settings, it seems reasonable to implement both Intervention Micro and Intervention Macro. It remains important to investigate participant characteristics that contribute to treatment success.

WHAT THIS PAPER ADDS

What is already known on the subject Systematic reviews and multiple case studies suggest that reading strategies are a promising approach to treat text-level reading comprehension in aphasia. The efficacy of reading strategies has been demonstrated for different populations. However, to date no group study has evaluated the efficacy of reading strategies on text-level reading comprehension in people with aphasia. What this study adds This study provides the first group-level evidence about the efficacy of a systematic strategy-based intervention in 22 people with post-stroke chronic aphasia. During 14 treatment sessions, participants applied four reading strategies to newspaper and magazine articles within two intervention components called Intervention Micro and Intervention Macro (two strategies per intervention component). We found improvements in text-level reading comprehension for at least 3 months post-intervention, as well as effects on selected cognitive functions and self-reported reading abilities, thoughts and feelings about reading and the ability to engage in reading activities. What are the clinical implications of this work? The strategies and materials evaluated in this study could be used in clinical practice with people with aphasia. In order to replicate treatment effects in clinical practice, we suggest applying the strategy combination with the same protocol features (e.g., frequency, duration, homework, product orientation) as in this study, implementing Intervention Micro and Intervention Macro sequentially in either order. As treatment response was not equal in all individuals, it seems important to investigate individual features that contribute to treatment success.

Reporting of Classroom-Based Morphological Awareness Instruction and Intervention for Kindergarten to Grade 3 Students in the Literature: A Scoping Review

PURPOSE

The purpose of this scoping review was to document how the literature reports morphological awareness instruction and interventions delivered by speech-language pathologists (SLPs) and/or educators in classroom settings for kindergarten to Grade 3 students.

METHOD

We followed the Joanna Briggs Institute's methodology for scoping reviews and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews reporting guidelines. Six relevant databases were searched systematically with article screening and selection completed by two reviewers calibrated for reliability. For data charting, one reviewer extracted content and a second reviewer verified it was pertinent to the review question. Charting for the reported elements of morphological awareness instruction and interventions was guided by the Rehabilitation Treatment Specification System.

RESULTS

The database search yielded 4,492 records. After removal of duplicates and screening, 47 articles were selected for inclusion. Interrater reliability for source selection exceeded the pre-established criterion of k = .61. Our analysis generated a comprehensive description of the elements of morphological awareness instruction as reported in the included articles.

CONCLUSIONS

Our findings provide school-based SLPs and educators a systematic means of reviewing the literature to identify key elements of morphological awareness instruction in published articles for application of evidence-based practices with fidelity, thus helping to close the research-to-practice gap. Our manifest content analysis revealed reporting of the elements for classroom-based morphological awareness instruction was varied, and in some cases, underspecified in the articles included in our study. Implications for clinical practice and future research to advance knowledge and promote implementation of evidence-based practices by SLPs and educators in today's classrooms are discussed.

SUPPLEMENTAL MATERIAL

https://doi.org/10.23641/asha.22105142.

Strategy-based reading comprehension therapy during early acquired brain injury rehabilitation: preliminary results

Introduction: An evidence-based intervention and service delivery model for early acquired brain injury reading comprehension rehabilitation (involving multiple-strategy, hierarchical reading) was investigated with 3 clients <3 m post onset as part of their brain injury rehabilitation program.Materials and methods: A multiple-baseline single case experimental design was used for each participant, with data analysed using Tau-U. Assessments of reading comprehension (impairment and activity level) were performed pre/post intervention, and at follow-up (3-6 months post-treatment). Participants' perceptions of the intervention and service delivery model were captured via semi-structured interviews.Results: All participants demonstrated improved reading comprehension post-intervention on all formal measures. At follow-up, reading comprehension was grossly maintained by 2 participants. The single case experimental design results (Tau-U) showed moderate-large intervention effect sizes for factual and inferential reading comprehension, two participants had significant (p = 0.01) changes. Participants reported overall positive experiences with the intervention.Conclusion: The intervention and service delivery model were successfully implemented in clinical practice, and preliminary results show the intervention has clinical promise with an early acquired brain injury population.IMPLICATIONS FOR REHABILITATIONCognitive communication reading comprehension deficits occur following acquired brain injury and impact participation during rehabilitation and in the community.An evidence-based intervention for the early rehabilitation of cognitive communication reading comprehension deficits following acquired brain injury has been developed and trialled in clinical practice with adults <3 months post-acquired brain injury, via a series of single-case experimental designs.Improvements in reading comprehension skill and activity/participation occurred for all participants post-intervention; statistically significant changes occurred for 2 of 3 clients.Early rehabilitation of cognitive communication reading comprehension deficits can be successfully implemented as a component of a multidisciplinary rehabilitation program.