The purpose of this study was to investigate the effectiveness of two different methods of teaching learning disabled middle school students (6th, 7th, and 8th grades) how to solve one-step addition and subtraction mathematics story problems. This study also compared the generalization of the two instructional methods to problems written in simple syntax which required the performance of two mathematics operations, addition and subtraction, in order to obtain the correct written solution.Teachers were randomly assigned to one of the two instructional methods. The students in the experimental and control classrooms were administered the The Mathematics Computation Screeninq Test, the One-step Story Problem-Solving Test of Mathematics Reasoninq and the Two-step Story Problem-Solving Test of Mathematics Reasoninq. Students who obtained above 80% mastery on the The Mathematics Computation Screening Test and at or below 67% mastery on the pretest of the One-step Story Problem-Solving Test of Mathematics Reasoning were included in the experimental and control groups. Students in the experimental and control groups who meet the above criteria and were at or below the 60% mastery level on the pretest of the Two-step Storv Problem Solving Test of, Mathematics Reasoning were included in the analysis of two-step problems. There were 70 students who meet these criteria. Following administration of the tests, students received 17 days of instruction in one of the two instructional methods.Previous research has shown that good problem-solvers initially have a mental representation of a story problem prior to solving the problem and that accurate performance may be increased by teaching students to generate diagrammatic representations of the problems. Based on this research it was hypothesized that learning disabled students who receive instruction in generating diagrammatic representations would have a higher mean performance on a linear composite of writing number sentences and solving one-step addition and subtraction story problems than learning disabled students who did not receive this instruction when pretest performance on one-step written solutions was held constant. It was also hypothezied that when presented with two-step addition and subtraction story problems learning disabled students who receive instruction in how to generate diagrammatic representations for various one-step addition and subtraction story problems would have a higher mean performance than learning disabled students who do not receive this instruction when pretest one-step and two-step written solutions were held constant.A 2 X 2 X 2 X 2 hierarchical multivariate analysis of covariance mixed effects design followed by examination of step down F ratios was used to test the one-step hypotheses. Analysis of the data indicated no significant difference between the groups on number sentence writing and on solving one-step addition and subtraction story problems varying in syntactic complexity and position of the unknown term. The data did indicate a significant interaction between the within subject factors of syntax, position of the unknown term, and mathematics operation.A 2 X 2 hierarchical analysis of covariance design was used to test the hypotheses regarding generalization of the two instructional methods to two-step story problems of addition and subtraction. Analysis of the data indicated no significant difference between the problem-solving performance of students taught with the diagrammatic instructional method and those taught in the control group. / Department of Special Education

The purpose of this study was to investigate the stability of Wechsler Intelligence Scale for Children-III (WISC-III) test scores in children with Learning Disabilities. Previous research has suggested that some children with Learning Disabilities do not demonstrate the same stability of performance, over time, on the Wechsler as many children in the general population.The sample utilized in this study consisted of 214 children who had been identified as having Learning Disabilities. WISC-III data was collected through archival review of education files.Test-retest stability for the WISC-III over a period of approximately three years was assessed using correlational and t-test data. For the total sample, three year test-retest correlations for the Verbal IQ, Performance IQ, and Full Scale IQ were .67, .73, and .74, respectively. However, Verbal IQ, Full Scale IQ, and Verbal Index scores were observed to drop significantly between testings. Mean score differences for the Verbal IQ and Verbal Comprehension scales were slightly over three points. The mean difference for the Full Scale IQ was slightly less than two points.Analysis of individual scores indicated considerable variability, with some students decreasing as much as 30 or increasing as much as 37 IQ points at the time of retesting. Analysis of distribution of score differences suggested that the children with Learning Disabilities in this sample demonstrated more variability in performance, overall, than might be anticipated in the general population. / Department of Educational Psychology

The purpose of this study was to investigate whether the use of computers can modify the focus of attention of learning disabled students in a matching task. More specifically, this study examined learning disabled students' performance (correct answers and response time for correct answers) when completing a task consisting of matching Chinese characters when presented under three display conditions: traditional card, static computer, and animated computer display.This study involved 42 subjects who were children with ages 9 through 11 and were randomly selected from a list of learning disabled students in the Muncie Community School District, Muncie, Indiana. They were in regular classrooms with special education servicing for learning disabled students. Subjects were randomly assigned into one of the three presentation methods.Previous research has shown that microcomputers have been successfully used in special education. Microcomputers can not only motivate learning disabled students to learn but also control many focus of attention related stimulus characteristics including brightness, distance between stimuli, number of stimuli, and the stability of a stimulus. Based on this research it was hypothesized: (a) that learning disabled students who visually match Chinese characters presented via static or animated computer screens would have more correct answers and have less response time for correct answers than learning disabled students who visually match Chinese characters presented via traditional cards; (b) that learning disabled students' performance in the animated computer condition would be better than that in the static computer condition; and (c) that learning disabled students' performance in these two computerized conditions would be better than that in the traditional card condition at different stimulus difficulty levels.A 3 x 5 analysis of variance with repeated measures and a Scheffe Multiple Comparison Test on Main Effects were used to analyze the data. The results of this study indicated that: (a) learning disabled students who were presented the matching task via computer screens did not demonstrate an overall improvement in focus of attention; (b) learning disabled students who were presented with the matching task via animated computer screen presentation did better than students under the static computer presentation at the easiest level of task difficulty; and (c) learning disabled students who were presented the matching task under the static computer screen presentation condition performed worse than students completing the task under the traditional card presentation condition at the easiest task difficulty level when dealing with simple tasks; and (c) that learning disabled students who were presented with Chinese characters via static computer screen might perform worse than students with traditional card presentation when completing simple tasks.The results from this study failed to completely support the main hypothesis that computerized instruction methods could improve learning disabled students' focus of attention. The possible explanations for the general unsuccessfulness of the computer conditions are that the testing materials in this study were not programmed in the sense of individualized rate and that there was no feedback regarding correct or incorrect responding or contingent reinforcement for the correct answers. Future studies should include systematic feedback for correct answers as well as computer conditions. Replication studies which use different stimuli from those of the current study to determine the generalization of the results should also be conducted. / Department of Special Education

Previous empirical studies have been inconsistent in the identification of cognitive differences between LD and EH children on psychoeducational assessment batteries. Furthermore, studies using multivariate procedures such as discriminant analysis have failed to verify the basic underlying assumption of homogeneity of variance-covariance matrices of the groups. Homogeneity of covariance can be assessed by comparing factor structures of the two groups.The purpose of this study was to investigate the cognitive differences between LD and EH children on a psychoeducational assessment battery Including the WISC-R, WRAT, PIAT, PPVT, and DVMI, typically used to identify the two exceptionalities. Differences In factor structures were investigated in an effort to clarify group differences in cognitive functioning, and to investigate the utility of multivariate analyses such as discriminant analysis with these two groups of children.The subjects were 1165 public school children, aged 6 to 16, referred for assessment and subsequently classified and served in special LD and EH programs. Four and five factor solutions were compared using the congruence coefficient to determine statistical similarities. The first three factors of each solution, Verbal Concepts, Verbal Achievement, and Visual Perceptual Reasoning, were found to be statistically similar in construct and interpretation. These results suggest that If the use of multivariate procedures in studying LD and EH group differences is limited to cognitive performance in the areas of verbal concepts, reading and spelling achievement, and visual perceptual reasoning skills, the results can be accepted as valid. The discriminant analysis would not likely be violating the homogeneity assumption.Differences were found in factor structures Involving the order of the factors extracted in terms of importance In explaining variance. Also, statistically significant differences were found between the factors Involving Math, Visual Motor, and Sequential skills, suggesting that multivariate analyses using these factors would likely violate the homogeneity assumption.Results indicate the presence of heterogeneity in the matrices of LD and EH children, and suggest caution in the interpretation of multivariate statistical analyses with these children. Violation of the assumption of homogeneity can invalidate statistical findings and their application to the study of group differences.

The purpose of this study was to determine if distinct subgroups of learning disabled children could be identified using a single, recently developed, instrument--the Differential Ability Scales (DAS). Ward's method of cluster analysis was used to group 83 school-verified learning disabled children from the standardization sample.These children were classified using the core, diagnostic, and achievement subtests of the DAS. Achievement subtest scores were transformed into T-scores with a mean of 50 and a standard deviation of 10 to provide scores on the same scale as the core and diagnostic subtests. Using similar units allowed all scores to contribute more equally during the clustering (Romesburg, 1984).The following six subgroups were identified: (a) generalized, (b) high functioning, (c) normal, (d) underachievement, (e) borderline, and (f) dyseidetic. Not all subgroups displayed the expected discrepancy between intelligence and achievement associated with the current definitions of LD. One subgroup had what might be described as a "normal" diagnostic profile on the DAS. These results were consistent with those of prior subtyping research (Lyon & Watson, 1981; Lyon et al., 1981) where "normal" subgroups were found. Another subgroup obtained General Conceptual Ability scores within the borderline range. Overall, children in this subgroup displayed consistently low scores on all the DAS subtests and achievement commensurate with general ability. In subsequent discriminant analyses, both achievement and diagnostic subtests were necessary for accuracy in classification.This study provided evidence as to the DAS's ability to differentially diagnose the learning disabled and provided distinct profiles for LD subgroups. Administration of the diagnostic subtests along with the score and achievement subtests can provide the clinician with valuable diagnostic information for LD. / Department of Educational Psychology

The purpose of the study was to determine whether significant differences exist between learning disabled and non-learning disabled children on memory performance for words learned in an incidental learning paradigm. Depth of processing and retrieval cue type were the treatment variables which controlled performance on a cued recall test of memory.Methodology. Thirty learning disabled and 30 non-learning disabled children in the fourth and fifth grades participated in the study. Seventy percent of the subjects were male and 30 percent were female. All subjects in the learning disabled group were tested for a severe discrepancy between potential and achievement in the area of reading prior to inclusion in the study. All subjects had IQ's not less than 1 standard deviation below the mean.Each subject was presented 32 stimulus words. All words were common concrete nouns with a reading level no greater than second grade. The stimulus words were encoded with congruent and non-congruent rhyming words and semantically congruent and non-congruent sentence frames. A cued recall test of memory was presented to each subject following the incidental learning activity. Rhyming and sentence frame cues were presented, and the subject was provided a 10 second opportunity to recall one of the stimulus words. The entire activity was presented on a microcomputer which also kept a record of the student's responses. The computer also generated a random presentation order, random ordered treatment condition for.Results. Non-learning disabled children recalled significantly more stimulus words than learning disabled children. Both groups performed significantly better on words encoded using deep level congruent semantic processing and cued with congruent semantic retrieval cues. At all levels, however, optimal performance occurred when retrieval cue type matched encoding level.Conclusions. Differential memory performance in learning disabled and non-learning disabled children can be controlled in incidental learning activities. Depth of processing affects differential memory performance. In all cases words cued with retrieval cues of the same level of processing are recalled more efficiently than those cued with recall cues of another level of processing each stimulus word, and a random ordered memory test.

The present investigation considered the utility of traditional psychoeducational measures in the prediction of neuropsychological impairment in learning disabled children. The subjects were 368 learning disabled children ranging in age from 9 to 14, with a mean age of 10.68 years, and a standard deviation of 1.62. In addition to traditional psychoeducational measures, each subject was administered the Halstead-Reitan Neuropsychological Battery for Older Children (HRNB-C). Subjects were considered impaired or nonimpaired on the basis of their score on the HRNB-C. A Discriminant Analysis was utilized to investigate what variables from the Wechsler Intelligence Scale for Children-Revised (WISC-R), Wide Range Achievement Test-Revised (WRAT-R) and the Peabody Picture Vocabulary Test-Revised (PPVT-R) would be used to predict the subjects' neuropsychological status. It was found that 12 variables added significantly (R < .05) to the prediction of impairment, with Arithmetic and Block Design subtests the most prominent predictors. A Regression Analysis was used to consider the subjects' score on the HRNB-C in a continous fashion. The regression equation that emerged showed the Performance Scale of the WISC-R to be the best predictor of the impairment index.MANOVA and ANOVA statistics were used to investigate the differences between the groups. Results indicated that there was a significant main effect for gender. Males tended to score higher than females on visual spatial tasks. General cognitive skills were lower in females than males. Overall, females tended to be more neuropsychologically impaired than males. / Department of Educational Psychology

A predominance of symptomology related to neurological dysfunction has been reported for at least some learning disabled (LD) students. This investigation examined the self-reported neuropsychological symptoms of LD and normal students in grades 3 through 12. Determination of group membership based on the childrens' responses to items on the Neuropsychological Symptom Inventory (NSI) was made for all subjects in the study.A discriminant analysis was conducted in order to determine the degree of group separation based on the item responses and which reported symptoms add significantly to that separation. Out of 40 possible items, 19 added to the discriminant function. Prediction of group membership was accomplished with a high degree of accuracy. Nearly 80% of the total population examined were correctly classified according to actual group membership. Of the LD population, 32% were identified as normal but only 16% of the normal population were misdiagnosed as LD. Additionally, nine individual symptoms were identified as reported by a greater percentage of LD students than normals.The results of this investigation suggest that the NSI as a screening instrument may be valuable for some populations. The 80% accuracy rate with the low number of false-positives (16%) is extremely encouraging. Additional research with the NSI to validate the presence of the symptomology reported would add to the already existing data related to the neuropsychological implications related to learning disabilities. / Department of Educational Psychology

Access to abstract restricted until 12/14/2015. / Access to thesis restricted until 12/14/2015. / Department of Educational Psychology

According to Locke and Latham (1990), goal-setting is a powerful motivationa! tool which captivates the individual's attention and sense of effort in pooling all available resources to accomplish a task with accrued determination. Goal-setting has been used successfully in sports and physical activities (Kyllo & Landers, 1995). Positive results have also been realized with low achievers in academic tasks (Bandura & Schunk, 1981). / The purpose of this investigation was to test the effects of goal-setting on basketball free throwing with normally achieving (NA) boys and girls, and with children having learning disabilities (LD), ages 9-13 years. This study also tested the relationship between Perceived Physical Self-Competence (Harter, 1978b) and performance. / Results indicated that the children with LD in the goal-setting group outperformed the control group. However, goal-setting failed to differentiate the performances of NA children. No correlation was established between Perceived Physical Self-competence and the performance of these children. Methodological key points are discussed and suggestions are given for future research with goal-setting and children. (Abstract shortened by UMI.)