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237
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67
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54
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52
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52
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The Effect of Ritalin on WISC-R Block Design WISC-R Coding and Bender Gestalt Developmental Scores of Hyperactive Children
Psychological research suggests that Ritalin reduces the rate of maladaptive behaviors in hyperactive children but does not improve their academic performance. Teachers, however, often assert that writing skills and other graphic work are improved by Ritalin. Twenty elementary school children who had been diagnosed as hyperactive and who were taking Ritalin were tested using WISC-R coding, WISC-R block design, and Bender Gestalt. Ten of the subjects were assigned to a group which was first tested when the children were off Ritalin and subsequently tested when they were on Ritalin. The sequence was reversed for the remaining ten. This procedure was designed to counterbalance the effect of practice. Direct difference t-tests indicated that there were no differences between groups regarding any of the three dependent measures. Thus, results indicate that the popular conceptions among educators regarding the efficacy of Ritalin for improving visual-motor efficiency is open to serious question.
Date:
May 1986
Creator:
Wall, Mark
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effect of Stress, Anxiety-Proneness and Previous Exposure to Familial Abuse on Violence in Later Relationships
Abuse in adult relationships as affected by stress, anxiety-proneness, and exposure to abuse as a child was examined using 579 North Texas State University undergraduates, Frequency and levels of abuse observed or received as a child and received or expressed as an adult were measured using a modification of Straus' Conflicts Tactics Scale (1979). Anxiety-proneness was determined by scores received on Spielberger's (1970) State-Trait Anxiety Inventory. Current levels of stress for the past two years were measured using the Life Experiences Survey (Sarason, 1978). Overall frequencies for received and expressed abuse (including physical and verbal abuse) in adult relationships were quite high (62.9 percent and 73.8 percent respectively). Females reported expressing significantly more abuse than did males. No gender differences were found for the receipt of abuse. Gender differences in types of violence were also examined. In addition, multiple regression was used to determine predictor variables for the expression and receipt of abuse. For males, receiving abuse as a child, positive stress scores, higher levels of anxiety-proneness, and observing father's abuse of mother significantly predicted expressing abuse as an adult. Observing mother's abuse of father and positive stress scores significantly predicted receiving abuse as an adult. For females, having received …
Date:
August 1986
Creator:
Rose, Patricia Riddle
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effect of Text Structure and Signaling Devices on Recall of Freshman Arab Students
The problem of this study was to examine the effect of text structure and signaling devices on immediate and delayed recalls of freshman Arabic-speaking students after reading a text. Subjects for the study were forty-five freshman Arabic-speaking students enrolled in three freshman English courses at a state university. All subjects were male students. The subjects-were chosen on a voluntary basis. The subjects were given the Reading Comprehension Section of the TOEFL. They were then divided into groups of good, average, and poor readers according to their performance on the TOEFL. Two well—organized passages of expository text with clearly identifiable top-level structure of problem/solution and appropriate reading levels were selected for the study. Two versions of each passage were adapted — one with the signaling devices included in the passage and the other with the signaling devices deleted. Each subject read one version of each of the two passages. The immediate and delayed recalls of the subjects were scored by an unbiased scorer. The scorer was an expert teacher of English to foreign students. Hypothesis I stated that good readers would be able to utilize the writer's rhetorical mode of the text at a significantly higher level than average and poor …
Date:
May 1986
Creator:
Qandil, Mahmoud Ahmed
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effect of the Assimilation of the La Reunion Colonists on the Development of Dallas and Dallas County
This study examines the impact of the citizens of the La Reunion colony on the development of Dallas and Dallas County. The French, Belgian, and Swiss families that formed the utopian colony broughta blend of European culture and education to the Texas frontier in 1853. The founding of La Reunion and a record of its short existence is covered briefly in the first two chapters. The major part of the research, however, deals with the colonists who remained in Dallas County after the colony failed in 1856. Chapters three and four make use of city, county, and state records along with personal collections from the Dallas Historical Society Archives and the Dallas Public Library to examine the colonists effect on the government and business community. Chapter five explores the cultural development of the area through city and county records and personal collections.
Date:
December 1986
Creator:
Sandell, Velma Irene
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effect of Using Class Discussion as a Pre-Writing Activity in Teaching Composition to ESL Students
This study examines the effect of class discussion as a pre-writing activity on actual writing performance. The experiment was conducted with all the Level 3 and Level 4 students enrolled in the Intensive English Language Institute of North Texas State University in the Spring, 1986 semester. Cochrans C test was performed to test significant differences between groups at the beginning of this test. Multivariate analysis of variance tests were used to determine the treatment effect between and within groups, and a matched t-test was also utilized to analyze the difference within tests. Pearson product moment correlation coefficient was calculated to determine the relationship between the discussion activity score and the actual writing score. Analysis of covariance tests were used to determine which variance of discussion activities had greater effect on the actual writing score.
Date:
December 1986
Creator:
Bang, Hwa-Ja Park
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effectiveness of a Personal Robot in Presenting a Sound/Filmstrip as Measured by a Robotic Technology Achievement Test
The problem of this study was to compare the effects of two methods of filmstrip presentation on student achievement. One method employed a personal robot to automatically advance a filmstrip projector in sequence with an audio cassette tape while the other method had a person manually advancing a filmstrip projector in sequence with an audio cassette tape. These were the findings of the study: The pretested experimental and control subjects learned from the sound/filmstrip. The pretested experimental and control groups' mean posttest scores were significantly higher (p < .05) than their pretest mean scores. The experimental groups did not achieve significantly higher mean scores (p > .05) on a posttest, delayed retest, or module mean tests than the control groups. Using the findings of this study, the following conclusions were drawn. Students Learn from a sound/filmstrip on robotic technology whether it is presented by a human being or by a robot. A robot is a viable alternative to the human teacher in situations where the student-teacher interaction is limited.
Date:
August 1986
Creator:
Keenan, Douglas E. (Douglas Earl)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effectiveness of a Transitional First Grade Program
The purpose of this study was to determine the effectiveness of a transitional first grade program. A comparison of reading and math achievement and school attitude was the focus of the study. The study utilized a pretest/posttest design. The group of regular first grade students who qualified for the transitional program but attended regular first grade was the control group. The group of transitional first grade students was the experimental group. The regular first grade students received formal instruction in all academic areas. The experimental group received no formal instruction. All students were pretested and posttested using the Iowa Test of Basic Skills and the Minnesota School Attitude Survey. Testing was administered to small groups of five or less by the researcher. Scoring was done also by the researcher. An analysis of covariance was used to determine if a significant difference existed between the groups. The analysis of covariance did not produce a significant F at the .05 level when applied to the Iowa Test of Basic Skills except for reading for boys in both groups. The numbers in each cell were low and no further comparisons were made. Due to a testing date that was approved late in the …
Date:
December 1986
Creator:
Day, Mary Jo, 1940-
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of a Computer-Assisted and Managed Learning Program on Test Outcomes in a Basic Communication Course
The problem of this investigation was concerned with the effects that a computer-assisted and managed learning program had on the test outcomes of college students enrolled in a basic communication course. The purpose of the study was to determine the effects of participation in a computer-assisted and managed learning on the test outcomes of college students enrolled in a basic communication course. In order to facilitate the experiment, four hypotheses were formulated: 1. There will be significant differences in the posttest scores among the three groups. More specifically (a) the computer-assisted and managed learning (CAML) group will have significantly higher posttest scores than the teacher-assisted learning (TAL) group and the control group. 2. Computer apprehension will be significantly lower for students assigned to the CAML program, than students assigned to the TAL or control groups. 3. Computer complexity will be significantly lower for students assigned to the CAML group, than the students assigned to the TAL or control groups. 4. Computer utility will be significantly higher for students assigned to the CAML group, than students assigned to the TAL or control groups. Two experimental and one control group was used in the study. The experimental groups consisted of CAML (computer-assisted …
Date:
December 1986
Creator:
Sawyer, William Gregory
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effects of Adlerian Parent Education on Parents' Stress and Perception of Their Learning Disabled Child's Behavior
This study examined the effects of an Adlerian-based parent education program on parental stress and perception of Learning Disabled (LD) childrens' behavior. Forty parents, randomly assigned to treatment or waiting-list control groups, took the Parental Stress Index (PSI) and the Adlerian Parental Assessment of Child Behavior Rating Scale (APACBS) as pre and post tests. Parents in the treatment group attended a six-session Active Parenting program. No significant differences were found on the analysis of covariance for perceived parental stress following the parent education program. Seventy percent of the parents in this study had total PSI scores in the range defined as high stress by the PSI author. All of the PSI Child Domain pretest z scores were elevated indicating that parents perceive their LD children to be demanding, moody, distractible, and unadaptable. LD children's behavior is perceived as unacceptable and does not positively reinforce parents. The elevated z scores on the PSI parent Domain pretest indicate that parents of LD children feel less competent as parents and experience less attachment to their children than do parents of normal children. No significant differences were found on the APACBS following treatment, but 80 percent of the parents in the treatment group did …
Date:
August 1986
Creator:
Latson, Sherry R. (Sherry Rose)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effects of Channel Condition on Information Recall
The problem of this experimental study is to determine to what extent visual information may dominate over audio information. Additionally, the experimental design addresses problems with previous research in this area and emphasizes simplified approaches to the study of channel condition effects. The study does not include investigations of learning theory or short-term memory, but processes of listening and long-term memory are incorporated into the design. A stimulus of sound effects and slides was utilized in one audio and two audio-visual channel conditions, and results showed a high recall among all subjects in all three conditions. The study concludes that channel condition has little effect at low levels of information.
Date:
August 1986
Creator:
Cook, Jay Scott
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effects of Citizenship Curriculum Training on Ninth-Grade Discipline-Problem Students
This study was conducted to measure the effects of classroom instruction entitled Citizenship curriculum Training on high school discipline. Data for this study were collected and analyzed for fifty-eight ninth-grade students who had been referred to the principal's office three or more times the semester prior to the experimental treatment. An experimental group of twenty-nine students received citizenship curriculum instruction. The control group of twenty-nine students received only the school's traditional curriculum during second period class. Two teachers presented the citizenship curriculum training which included instructional units on beliefs, attitudes, emotions, anger, decision-making, communications, confrontation, positive attention, stress, peer pressure, authority figures, getting along in school, and the society game. Data were collected relative to grade-point average, absences, discipline referrals, and attitude toward high school as measured by the Remitters High School Attitude Scale. T-tests for correlated samples and analysis of covariance examined the effects of the Citizenship Curriculum Training on the four variables measured. The .05 level of significance was used to test the four hypotheses. The results of the study indicate that Citizenship Curriculum Training does not improve the students' gradepoint averages, absentee rate, lower the number of discipline referrals, and does not improve students' attitude as measured …
Date:
August 1986
Creator:
Pedraza, Antonio M. (Antonio Morales)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Collective Bargaining on the Powers of Principals: An Analysis of Teacher Contracts
This study analyzed a random sample of thirty-six collective bargaining contracts between teachers and their respective boards of education in Wisconsin, New York, Tennessee, and California. The contracts were studied to assess the effect that collective bargaining has had upon the powers of principals over time. This was done by comparing each contract to a comprehensive list of traditional powers that were available to principals prior to collective bargaining (Pre-Collective Bargaining Power Profile of Principals). This analysis of contracts was a two-phase process. The first step was to identify whether or not the profile statements in the Pre-Collective Bargaining Power Profile were referred to in each contract. The second step was to describe how the presence of references to these statements affected the Power Profile of Principals. The principal's power was reported as being affected in three ways: deleted, constrained, or authorized. The general conclusion of this study was that the effect of teacher collective bargaining upon the powers of principals has been marginal. The data from the analysis of the contracts revealed that the majority (66 percent) of the statements in the Pre-Collective Bargaining Power Profile were not referred to in the collective bargaining contracts. The effects of the …
Date:
August 1986
Creator:
Moehler, Michael Wolf
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effects of Gold Sodium Thiomalate on Murine Spleen Cells
The effects of gold sodium thiomalate (GST) on murine spleen cells were investigated using in vitro mitogen blastogenesis techniques. Addition of GST to intact spleen cells resulted in a decreased blastogenic response to the T cell mitogen, concanavalin A (Con A). Thymidine uptake of spleen cells depleted of macrophages and cultured with Con A and GST demonstrated biphasic effects. At 2.5 pg Con A/ml, blastogenesis of macrophage depleted spleen cells was inhibited to a lesser degree than intact spleen cells; whereas, at 0.5 pg Con A/ml, the macrophage depleted spleen cells were inhibited to a greater degree than the intact spleen cells. Addition of GST at intervals ranging from 0 to 48 hours indicated that inhibition occurred within 36 hours following mitogen stimulation. These results suggest that GST inhibits early events of lymphocyte activation by direct interaction with lymphocytes.
Date:
December 1986
Creator:
Brownback, Paul (Paul Eldon)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Lower Body Negative Pressure on the Cardiovascular System: The Relationships of Gender and Aerobic Fitness
Sixteen males and sixteen females were recruited for this study; eight of each gender were aerobically trained athletes; the remaining eight were untrained control subjects. Each subject performed a maximal exercise stress test for aerobic capacity (VO2max). On a separate day the blood volume and the cardiovascular responses to progressive (0 to -50 torr) lower body negative pressure (LBNP) were determined. The female subjects were observed to be significantly more tolerant of the LBNP than the male subjects. No differences between groups were observed in changes in leg volume, cardiac index, blood pressure, or heart rate during LBNP. However, the females, in comparison to the males, maintained stroke index at a higher level, and increased regional vasoconstriction more, during the LBNP induced hypotensive stress. These findings suggest that female subjects withstand LBNP to -50 torr better than male subjects.
Date:
August 1986
Creator:
Hudson, Donna Louise
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Mastery, Competitive and Cooperative Goals on Performance in Simple and Complex Sport Skills
The present study investigated the effects of different goal and feedback conditions on performance of a basketball field goal shooting task and a more complex one-on-one offensive basketball task. Subjects (N = 100) were matched, based on pre-test performance, into one of five conditions: competitive goal, cooperative goal, mastery goal, "do your best" with feedback, and "do your best" without feedback. Results indicated the competitive group was significantly better than the "do your best" without feedback group in one-on-one performance. No other between group differences were significant, although some consistent group trends were present. Subjects' goal orientations were not related to performance in specific goal conditions, with the exception of mastery oriented subjects in the mastery goal condition.
Date:
December 1986
Creator:
Giannini, John
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Mood State and Intensity on Cognitive Processing Modes
To investigate the effects of emotional arousal on information processing strategy, three different moods (sadness, anger, and happiness) were hypnotically induced at three different levels of intensity (high, medium, and low) in 29 male and female undergraduate students, while engaging them in a visual information processing task. Subjects were screened for hypnotic susceptibility and assigned to either a high susceptibility group or low susceptibility group to account for the attentional bias associated with this trait. All subjects were trained to access the three emotions at the three levels of intensity. During separate experimental sessions, subjects were hypnotized, and asked to access a mood and experience each level of intensity while being administered the Navon Design Discrimination Task, a measure of global and analytic visual information processing. Scores were derived for global processing, analytic processing, and a percentage of global to analytic processing for each level of mood and intensity. Two (hypnotic susceptibility) x 3 (emotion) x 3 (intensity level) repeated measures ANOVAs were computed on the global, analytic, and percentage scores. In addition, two separate ANCOVAs were computed on each dependent measure to account for the effects of handedness, and cognitive style. None of these analyses revealed significant main effects …
Date:
August 1986
Creator:
Lamar, Marlys Camille
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of Perceptual Motor Enrichment Upon a Six Year Old with Cerebellar Brain Damage
This study involved the effects of a perceptual motor enrichment program upon the motor skills of a six year old boy with cerebellar brain damage, who, with a control group of ten normal six year olds, was given a pre-test of motor skills. He and a child from the control group participated in a perceptual-motor enrichment program. The motor skills of both subjects were tested halfway through the program. Following the program, the experimental child, the control child, and the control group were post-tested on their motor skills. The testings showed that the greatest gains in motor skills were obtained by the experimental child, followed by the control child. The control group displayed little increase in motor skill performance.
Date:
August 1986
Creator:
Shepardson, Nina F. (Nina Fredrica)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effects of the Type A Behavior Pattern and Aerobic Exercise on the Allocation of Attention
This investigation examined the effects of aerobic fitness and the Type A behavior pattern on cognitive functioning in the split-attention (dual task) paradigm. Sixty-four adults were classified as Type A or B by means of the Jenkins Activity Survey, and as Runner or Sedentary using self-reports of physical activity. Under challenging instructions, subjects performed a primary task (Raven Advanced Progressive Matrices) and secondary task (Backward Digit Span) alternatively under single and dual task conditions. There was a significant interaction between aerobic fitness and task condition such that Runners outperformed Sedentary subjects under dual, but not single, task conditions on the secondary task. No differences were found on the primary task. Backward Digit Span performance under dual, but not single, task conditions, was also found to be positively related to the subjects eating a low cholesterol diet and maintaining a healthy weight. Contrary to predictions, there were no significant effects of the Type A behavior pattern, either main or interaction, on any of the cognitive measures. Type A Runners exceeded Type B Runners in aerobic points, races per year, runs per week, Personal Record attempts, and level of dissatisfaction with performance. There were no differences in the tendency to run while …
Date:
December 1986
Creator:
Morton, Anne Aldredge
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Elder Abuse: A Multi-Case Study
This descriptive study with quantitative aspects examined the phenomenon of elder abuse through the systematic review of 60 cases of elder abuse. Cases were randomly selected from the files of an Adult Protective Services agency in the North Central Texas area. Research questions examined the characteristics of the victims and abusers, types and duration of abuse, descriptions of abusive situations, the reporting and verification of abuse, case management strategies utilized by caseworkers, and the consequences of those strategies. The results of this study point to the probability of the elderly abuse victim being 75 years of age or older, female, white, and widowed. There did appear to be some connection between race and type of abuse with white victims more likely to experience physical and financial abuse. Approximately half of the elderly abuse victims had severe limitations in physical and/or mental functioning leading to some degree of dependence upon their abusers. However, eighty percent of the elderly victims resided in their own homes and half of these individuals were functionally independent. This study provided descriptions of the various types of abuse that were observed: physical, financial, emotional, passive neglect, and active neglect. Financial abuse was noted most frequently, and multiple …
Date:
August 1986
Creator:
Powell, Sharon L. (Sharon Leigh)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Electron-Ion Time-of-Flight Coincidence Measurements of K-K Electron Capture, Cross Sections for Nitrogen, Methane, Ethylene, Ethane, Carbon Dioxide and Argon (L-K) Targets
Protons with energies ranging from 0.4 to 2.0 MeV were used to measure K-shell vacancy production cross sections (oVK) for N_2, CH_4, C_2H_4, C_2H_6, and CO_2 gas targets under single collision conditions. An electron-ion time-of-flight coincidence technique was used to determind the ration of the K-K electron capture cross section, OECK, to the K-vacancy production cross section, oVK. These ratios were then combined with the measured values of oVK to extract the K-K electron capture cross sections. Measurements were also made for protons of the same energy range but with regard to L-shell vacancy production and L-K electron capture for Ar targets. In addition, K-K electron capture cross sections were measured for 1.0 to 2.0 Mev 42He^_ ions on CH_4.
Date:
May 1986
Creator:
Toten, Arvel D.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Elements of Jazz Harmony and Analysis
This study develops a method for analyzing jazz piano music, primarily focusing on the era 1935-1950. The method is based on axiomatic concepts of jazz harmony, such as the circle of fifths and root position harmonies. 7-10 motion between root and chordal seventh seems to be the driving force in jazz motion. The concept of tritone substitution leads to the idea of a harmonic level, i.e., a harmony's distance from the tonic. With this method in hand, various works of music are analyzed, illustrating that all harmonic motion can be labelled into one of three categories. The ultimate goal of this analytic method is to illustrate the fundamental harmonic line which serves as the harmonic framework from which the jazz composer builds.
Date:
August 1986
Creator:
Mahoney, J. Jeffrey
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Emperor of Ice Cream Visits Eudora Welty: The Uses of the Creative Imagination
Eudora Welty and Wallace Stevens share important aesthetic beliefs, especially regarding uses of the creative imagination by artists in acts of creation and characters in acts of living. A close reading of seventeen of Welty's stories, accompanied by references to related ideas in many of Stevens' poems, reveals how the imagination functions as epistemology and eucharist, while governing the shape of individual human views of the quotidian. The more abstract patterns of thought in their later works seem to move Welty closer to belief in a world beyond the quotidian than they do Stevens.
Date:
December 1986
Creator:
Kobler, Sheila F. (Sheila Frazier)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Empirical Examination of the Effects of FASB Statement No. 52 on Security Returns and Reported Earnings of U.S.-Based Multinational Corporations
Prior to the issuance of Financial Accounting Standards Board Statement No. 8 (SFAS No. 8), there was a marked inconsistency in the area of accounting for foreign currency translation. Though designed to make the diverse accounting practices of multinational corporations (MNCs) more compatible, SFAS No. 8 was the subject of a great deal of criticism, eventually leading to the issuance of Financial Accounting Standards Board Statement No. 52 (SFAS No. 52). SFAS No. 52 differs from SFAS No. 8 on objectives and method of translation, and on accounting treatments of translation adjustments. This dissertation provides an empirical examination of the security market reaction to the accounting policy change embodied in SFAS No. 52, and its impact on the volatility of reported earnings of MNCs. The effects of the issuance and early adoption of SFAS No. 52 on security return distributions were determined by both cross-sectional comparisons of cumulative average residuals (CAR) between MNCs and domestic firms and between early and late adopters, and by time-series tests on CAR of MNCs. Two volume analyses were performed to test the effects of SFAS No. 52 on security volume. The first analysis was adjusted to remove the effects of the marketwide factors on …
Date:
December 1986
Creator:
Elsayed-Ahmed, Sameh M. (Sameh Metwally)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Empirical Investigation of the Impact of Cognitive Complexity and Experience of Programmers, and Program Complexity on Program Comprehension and Modification
The psychological characteristics of programmers are believed to be important determinants of programming productivity. However, little evidence is available to support this contention. This investigation, motivated by the lack of such evidence, was concerned with determining the influence of the programmer's cognitive complexity (differentiation and integration) and experience on comprehending and modifying programs of different levels of complexity. Data were collected from ninty-three graduate and undergraduate students in a classroom experimental setting. In the first phase of the experiment, a background questionnaire was administered in order to collect experience and other demographic information. Also, a domain-specific Role Construct Repertory (REP) Test was administered to collect cognitive complexity information. In the second phase, the subjects were randomly assigned to either the program comprehension group or to the program modification group. Both groups used two COBOL programs of differing levels of complexity to do comprehension and modification exercises. Three sets of hypotheses were tested. The first set of hypotheses was designed to evaluate the direction and strength of the relationship between cognitive complexity and program comprehension and modification. The second set of hypotheses was designed to evaluate the combined influence of cognitive complexity and program complexity on the comprehension and modification of …
Date:
May 1986
Creator:
Khalil, Omar Elnadi M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library