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Stevens, Joseph J.; Schulte, Ann C. – Journal of Learning Disabilities, 2017
This study examined mathematics achievement growth of students without disabilities (SWoD) and students with learning disabilities (LD) and tested whether growth and LD status interacted with student demographic characteristics. Growth was estimated in a statewide sample of 79,554 students over Grades 3 to 7. The LD group was significantly lower…
Descriptors: Learning Disabilities, Mathematics Instruction, Student Characteristics, Mathematics Achievement
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Scammacca, Nancy K.; Roberts, Greg; Vaughn, Sharon; Stuebing, Karla K. – Journal of Learning Disabilities, 2015
This meta-analysis synthesizes the literature on interventions for struggling readers in Grades 4 through 12 published between 1980 and 2011. It updates Scammacca et al.'s analysis of studies published between 1980 and 2004. The combined corpus of 82 study-wise effect sizes was meta-analyzed to determine (a) the overall effectiveness of reading…
Descriptors: Meta Analysis, Intervention, Reading Difficulties, Elementary Secondary Education
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Nelson, Jason M.; Harwood, Hannah – Journal of Learning Disabilities, 2011
This article presents the results of a meta-analysis of the empirical literature on anxious symptomatology among school-aged students with learning disabilities (LD) in comparison to their non-LD peers. Fifty-eight studies met inclusion criteria. Results indicate that students with LD had higher mean scores on measures of anxiety than did non-LD…
Descriptors: Special Schools, Learning Disabilities, Identification, Statistical Significance
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Kanaya, Tomoe; Ceci, Stephen – Journal of Learning Disabilities, 2012
Because of the Flynn effect, IQ scores rise as a test norm ages but drop on the introduction of a newly revised test norm. The purpose of the current study was to determine the impact of the Flynn effect on learning disability (LD) diagnoses, the most prevalent special education diagnosis in the United States. Using a longitudinal sample of 875…
Descriptors: Intelligence, Learning Disabilities, Intelligence Tests, Intelligence Quotient
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Galway, Tanya M.; Metsala, Jamie L. – Journal of Learning Disabilities, 2011
The current study examined social cognitive skills in children with nonverbal learning disabilities (NLD) compared to normally achieving (NA) children. The relation between social cognitive skills and psychosocial adjustment was also investigated. There were no group differences on children's ability to represent orally presented social vignettes.…
Descriptors: Social Problems, Cues, Learning Disabilities, Nonverbal Learning
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Hagan-Burke, Shanna; Coyne, Michael D.; Kwok, Oi-man; Simmons, Deborah C.; Kim, Minjung; Simmons, Leslie E.; Skidmore, Susan T.; Hernandez, Caitlin L.; McSparran Ruby, Maureen – Journal of Learning Disabilities, 2013
This exploratory study examined the influences of student, teacher, and setting characteristics on kindergarteners' early reading outcomes and investigated whether those relations were moderated by type of intervention. Participants included 206 kindergarteners identified as at risk for reading difficulties and randomly assigned to one of two…
Descriptors: Reading Instruction, Student Characteristics, Teacher Characteristics, Kindergarten
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Berkeley, Sheri; Mastropieri, Margo A.; Scruggs, Thomas E. – Journal of Learning Disabilities, 2011
A pre-post experimental design with 6-week delayed posttest was implemented to investigate the effects of reading comprehension strategy (RCS) instruction with and without attribution retraining (AR) on reading outcomes for seventh, eighth, and ninth graders with learning and other mild disabilities. Students were randomly assigned to one of three…
Descriptors: Reading Comprehension, Research Design, Mild Disabilities, Effect Size
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Ives, Bob – Journal of Learning Disabilities, 2003
This paper reviews criticism on misinterpretation and overuse of significance testing in the social sciences and examines use of effect size measures to enhance interpretation of significance testing. Review of typical effect size measures and their application is followed by analysis of use of effect size measures in studies reported over 10…
Descriptors: Effect Size, Elementary Secondary Education, Learning Disabilities, Research Methodology