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What Gets Measured? A Systematic Review of Assessment Practices in Spelling Intervention Research

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Title: What Gets Measured? A Systematic Review of Assessment Practices in Spelling Intervention Research
Language: English
Authors: Brennan W. Chandler (ORCID 0000-0002-3138-6140), Jessica R. Toste (ORCID 0000-0002-6327-0054), Christina Novelli (ORCID 0000-0002-7804-0083), Emily B. Hardeman (ORCID 0009-0002-4315-4678)
Source: Assessment for Effective Intervention. 2026 51(3):153-165.
Availability: SAGE Publications and Hammill Institute on Disabilities. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: https://sagepub.com
Peer Reviewed: Y
Page Count: 13
Publication Date: 2026
Document Type: Journal Articles
Reports - Research
Education Level: Elementary Education
Descriptors: Spelling, Spelling Instruction, Learning Disabilities, Outcome Measures, Achievement Tests, Tests, Student Evaluation, English (Second Language), Students with Disabilities, Oral Reading, Reading Tests, Literacy, Phonological Awareness, Reading Fluency, Emergent Literacy, Elementary School Students
Assessment and Survey Identifiers: Wide Range Achievement Test, Gray Oral Reading Test, Kaufman Test of Educational Achievement, Woodcock Reading Mastery Test, Wechsler Individual Achievement Test, Test of Word Reading Efficiency, Dynamic Indicators of Basic Early Literacy Skills (DIBELS)
DOI: 10.1177/15345084261427675
ISSN: 1534-5084
1938-7458
Abstract: Spelling is a foundational literacy skill that supports both word reading and written expression. For students with or at risk of a learning disability (LD), difficulties in spelling often constrain the fluency and complexity of writing, making effective interventions essential. Yet, the conclusions drawn about intervention efficacy depend heavily on how outcomes are measured. This review synthesizes outcome measurement practices across 59 spelling intervention studies conducted over the past five decades. All outcome measures (n = 233) were coded by type (researcher-developed vs. norm-referenced) and by linguistic level (sublexical, lexical, sentence, discourse) using the Interactive Dynamic Literacy (IDL) framework. Descriptive analyses revealed that nearly four out of five outcomes were lexical, most often researcher-developed lexical-level spelling probes, with comparatively few outcomes at the sentence or discourse levels. Standardized assessments were similarly concentrated at the word level, with the "Wide Range Achievement Test--Spelling" subtest and "Test of Written Spelling" most commonly used. Finally, the pairing of proximal and standardized outcomes was inconsistent, particularly among group designs. Taken together, findings highlight a measurement bottleneck: spelling interventions are evaluated primarily through lexical-level accuracy, offering limited insight into whether gains transfer to the higher-level writing processes for students with or at risk for LD.
Abstractor: As Provided
Entry Date: 2026
Accession Number: EJ1505512
Database: ERIC
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  Data: What Gets Measured? A Systematic Review of Assessment Practices in Spelling Intervention Research
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  Data: <searchLink fieldCode="AR" term="%22Brennan+W%2E+Chandler%22">Brennan W. Chandler</searchLink> (ORCID <externalLink term="https://orcid.org/0000-0002-3138-6140">0000-0002-3138-6140</externalLink>)<br /><searchLink fieldCode="AR" term="%22Jessica+R%2E+Toste%22">Jessica R. Toste</searchLink> (ORCID <externalLink term="https://orcid.org/0000-0002-6327-0054">0000-0002-6327-0054</externalLink>)<br /><searchLink fieldCode="AR" term="%22Christina+Novelli%22">Christina Novelli</searchLink> (ORCID <externalLink term="https://orcid.org/0000-0002-7804-0083">0000-0002-7804-0083</externalLink>)<br /><searchLink fieldCode="AR" term="%22Emily+B%2E+Hardeman%22">Emily B. Hardeman</searchLink> (ORCID <externalLink term="https://orcid.org/0009-0002-4315-4678">0009-0002-4315-4678</externalLink>)
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  Data: <searchLink fieldCode="SO" term="%22Assessment+for+Effective+Intervention%22"><i>Assessment for Effective Intervention</i></searchLink>. 2026 51(3):153-165.
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  Data: SAGE Publications and Hammill Institute on Disabilities. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: https://sagepub.com
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  Data: Y
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  Data: 13
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  Data: <searchLink fieldCode="DE" term="%22Spelling%22">Spelling</searchLink><br /><searchLink fieldCode="DE" term="%22Spelling+Instruction%22">Spelling Instruction</searchLink><br /><searchLink fieldCode="DE" term="%22Learning+Disabilities%22">Learning Disabilities</searchLink><br /><searchLink fieldCode="DE" term="%22Outcome+Measures%22">Outcome Measures</searchLink><br /><searchLink fieldCode="DE" term="%22Achievement+Tests%22">Achievement Tests</searchLink><br /><searchLink fieldCode="DE" term="%22Tests%22">Tests</searchLink><br /><searchLink fieldCode="DE" term="%22Student+Evaluation%22">Student Evaluation</searchLink><br /><searchLink fieldCode="DE" term="%22English+%28Second+Language%29%22">English (Second Language)</searchLink><br /><searchLink fieldCode="DE" term="%22Students+with+Disabilities%22">Students with Disabilities</searchLink><br /><searchLink fieldCode="DE" term="%22Oral+Reading%22">Oral Reading</searchLink><br /><searchLink fieldCode="DE" term="%22Reading+Tests%22">Reading Tests</searchLink><br /><searchLink fieldCode="DE" term="%22Literacy%22">Literacy</searchLink><br /><searchLink fieldCode="DE" term="%22Phonological+Awareness%22">Phonological Awareness</searchLink><br /><searchLink fieldCode="DE" term="%22Reading+Fluency%22">Reading Fluency</searchLink><br /><searchLink fieldCode="DE" term="%22Emergent+Literacy%22">Emergent Literacy</searchLink><br /><searchLink fieldCode="DE" term="%22Elementary+School+Students%22">Elementary School Students</searchLink>
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  Label: Assessment and Survey Identifiers
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  Data: <searchLink fieldCode="SU" term="%22Wide+Range+Achievement+Test%22">Wide Range Achievement Test</searchLink><br /><searchLink fieldCode="SU" term="%22Gray+Oral+Reading+Test%22">Gray Oral Reading Test</searchLink><br /><searchLink fieldCode="SU" term="%22Kaufman+Test+of+Educational+Achievement%22">Kaufman Test of Educational Achievement</searchLink><br /><searchLink fieldCode="SU" term="%22Woodcock+Reading+Mastery+Test%22">Woodcock Reading Mastery Test</searchLink><br /><searchLink fieldCode="SU" term="%22Wechsler+Individual+Achievement+Test%22">Wechsler Individual Achievement Test</searchLink><br /><searchLink fieldCode="SU" term="%22Test+of+Word+Reading+Efficiency%22">Test of Word Reading Efficiency</searchLink><br /><searchLink fieldCode="SU" term="%22Dynamic+Indicators+of+Basic+Early+Literacy+Skills+%28DIBELS%29%22">Dynamic Indicators of Basic Early Literacy Skills (DIBELS)</searchLink>
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  Data: 10.1177/15345084261427675
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  Data: 1534-5084<br />1938-7458
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Spelling is a foundational literacy skill that supports both word reading and written expression. For students with or at risk of a learning disability (LD), difficulties in spelling often constrain the fluency and complexity of writing, making effective interventions essential. Yet, the conclusions drawn about intervention efficacy depend heavily on how outcomes are measured. This review synthesizes outcome measurement practices across 59 spelling intervention studies conducted over the past five decades. All outcome measures (n = 233) were coded by type (researcher-developed vs. norm-referenced) and by linguistic level (sublexical, lexical, sentence, discourse) using the Interactive Dynamic Literacy (IDL) framework. Descriptive analyses revealed that nearly four out of five outcomes were lexical, most often researcher-developed lexical-level spelling probes, with comparatively few outcomes at the sentence or discourse levels. Standardized assessments were similarly concentrated at the word level, with the "Wide Range Achievement Test--Spelling" subtest and "Test of Written Spelling" most commonly used. Finally, the pairing of proximal and standardized outcomes was inconsistent, particularly among group designs. Taken together, findings highlight a measurement bottleneck: spelling interventions are evaluated primarily through lexical-level accuracy, offering limited insight into whether gains transfer to the higher-level writing processes for students with or at risk for LD.
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  Data: 2026
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      – SubjectFull: Learning Disabilities
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