Using a case study approach, this investigation focused on the nature of the relationship between computer related expenditures and student achievement in mathematics, with consideration given to the mediating factors influencing the relationship. Some of these factors included the types of computers and software being used, the objectives of computer instruction, teacher preparation in the use of the computer as an instructional tool, the amount of time individual students had access to a computer during the school year, and the socioeconomic status of pupils. Two of the twenty-five largest school districts in Texas were selected as the subjects for this study. Numerical data were collected from existing documents including general ledgers, bid tabulations, test score tables, and records showing the numbers of students participating in the free and reduced price lunch programs. Specific information regarding the implementations of the instructional programs was gathered through observations and 2 interviews with principals/ teachers, and students in four— teen junior high schools in each of the two school district. The districts exhibited more differences than similarities in the approaches to using computers for instruction in mathematics. One district, for about two hundred dollars per student, purchased a prepared, copyrighted, and patented program consisting …

This study was concerned with the enrollment patterns in required general education courses by technicaloccupational students in an urban community college. The purposes of this study were to (1) examine the general education course enrollment patterns of technical occupational students in specific programs; (2) determine if completion of an English course yields a higher GPA; (3) profile the characteristics of the students who do and do not enroll in general education courses; (4) determine if students enrolled in certain technical-occupational programs are more likely to enroll in general education than students enrolled in similar programs; and (5) determine if completion of general education courses has a positive effect on overall GPA of students.

This study was conducted to determine the administrative functions that community college academic administrators perform with microcomputers; to identify demographic characteristics that distinguish administrators who rate their overall use of the microcomputer higher than others; to ascertain whether the importance placed on (1) microcomputer uses, (2) computer training, and (3) non-training conditions affecting computer use differed from the perceived current uses, training, and adequacy of conditions. Data for this study were collected through a survey instrument that was devised and evaluated for use in the study. The survey instrument was delivered during the fall, 1984 semester to the forty—two division chairs serving at the seven colleges that comprise the Dallas County Community College District. Thirty five division chairs responded to the survey for an 83.33 per cent return rate, and thirty-four of the survey forms returned were useable for analysis.

This study focuses on the problems of international students as perceived by both international students and faculty in a public university. The major purposes of the study are to determine if there are significant differences in perceptions of the problems of international students between international students and faculty members, between groups of international students, and between groups of faculty members. A modification of an international student problem inventory instrument was used to collect data from 371 international students and 316 faculty members. Thirteen hypotheses were tested using frequency and percentages, analysis of variance, multivariate analysis of variance, and univariate analysis of variance, as required according to the data collected and the hypothesis being tested.

The purpose of this study was to determine superintendents' and special education directors' perceptions regarding a special education minimum competency testing framework in Texas. Additionally, this study attempted to determine a relationship between school districts' demographic characteristics and superintendents'and special education directors' perceptions. Questionnaires were mailed to a random sample of seventy five superintendents, seventy-five special education directors of single districts and seventy-five special education directors of cooperatives in the State of Texas.

In an attempt to determine the normative levels in health attribution and emotional, intellectual, and neuromuscular functioning in the parkinsonian population, 31 diagnosed parkinsonian volunteers recruited from exercise classes and/or organizations were tested. Health attribution was measured by the Health Attribution Test (HAT), personality factors by the Clinical Analysis Questionnaire (CAQ), general intellectual level by the Peabody Picture Vocabulary Test- Revised (PPVT-R) and the Intellectual Processes subscale of the Luria-Nebraska Neuropsychological Battery (Luria- Intelligence), and neuromuscular functioning by the McCarron Assessment of Neuromuscular Development (MAND) and Bender- Gestalt (BVMGT). Controls for comparisons were obtained from the clinical ecology population and normals for personality traits and the nonspecific neurologically impaired, healthy aging populations, and normals for intellectual and neuromuscular functionings. Chi-square and t-tests were computed on the data. Results indicated that the parkinsonians manifest less lower body strength (£ < .01), poorer balance with eyes closed (JD < .01), and slower fine motor speed (p < .05) than normals. The parkinsonians function significantly better in areas involving upper body coordination (p < .01, £ < .05) , slow-controlled movements (g.< .001), BVMGT (p < .05), and PPVT-R (p < .01) than the nonspecific neurologically impaired. On the Luria-Intelligence, 21 percent of …

The purpose of this investigation was to determine the prevalence of specific learning disabilities in school-aged hearing impaired children based on the proposed theoretical definition of the National Joint Committee for Learning Disabilities (1981) and the theoretical definition constructed by the Canadian Association for Children and Adults with Learning Disabilities (1981). The operationalization of these theoretical definitions, coupled with the current operational definition issued by the Texas Education Agency (1983), formulated the investigative framework.

The problem with which this study is concerned is to determine whether or not differences exist in the achievement of student development tasks by college student athletes and non-athletes. The investigation also tested for differences in the achievement of developmental tasks between athletes and non-athletes based on the variables of race (black or white), classification, and interpersonal behavior orientation. The sample was composed of 276 male students (201 non-athletes and 75 athletes) who attend a large private university in Texas. Each participant completed both a student developmental task inventory questionnaire, which measures individual achievement of the tasks of developing autonomy, purpose, and mature interpersonal relationships, and an interpersonal relationship orientation-behavior instrument, which measures an individual's orientation to others on the scales of inclusion, control, and affection.

In recent years there has been a growing use of expectancy theory to study motivation and performance in accounting environments. Such research efforts have resulted in reporting some inconsistent findings and low explanatory power for the expectancy model. In an attempt to increase the explanatory power of the model, several researchers have suggested the inclusion of nonexpectancy components in the model. This research was undertaken to develop an integrative expectancy model by incorporating some elements of goal setting theory and attribution theory into the expectancy formulation. The study was also designed to provide empirical evidence on the validity of a within-subject design of the proposed model through an empirical investigation of auditors* performance behaviors to meet budgeted time in public accounting firms. Alternative performance behaviors to meet budgeted time were modeled in three choice processes. The first deals with auditors choice to report unfiltered time (i.e. report actual time worked) as opposed to filtered time worked (i.e., underreporting and sign-off behaviors). The second process deals with auditors' choice to engage in underreporting as opposed to sign-off behaviors. The third process deals with auditors' choice to reduce or overrule some audit procedures based on professional judgment. Data were collected using an …

This research examines problem definition as the first step in a sequential problem solving process. Seventy-seven managers in four diverse organizations were studied to determine common characteristics of problem definers. Among the variables considered as differentiating problem definers from non-problem definers were cognitive style, personal need characteristics, preference for ideation, experience, level of management, and type and level of education. Six hypotheses were tested using the following instruments: the Problem Solving Inventory, the Myers-Briggs Type Indicator Schedule, the Preference for Ideation Scale, the Edwards Personal Preference Schedule, a Problem Definition Exercise, and a Personal Data Questionnaire. Among the managers studied, only twelve were found to be problem definers. Such small numbers severely limit the ability to generalize about problem definers. However, it is possible that problem definers are scarce in organizations. In terms of cognitive style, problem definers were primarily thinking types who preferred evaluation to ideation in dealing with problems, making judgmental decisions on the basis of collected facts. Problem definers were not predominant at lower levels of the organization. One-third of the problem definers held upper level management positions while another one-fourth were responsible for specialized activities within their organizations, overseeing special projects and individuals much like upper …

The purpose of this study was to determine the relationships between the scores of students on the Pre-Professional Skills Test (P-PST) and the scores of students on college aptitude tests, the race of students and the number of college hours that students had completed. The subjects who participated in this study were education students who sought admittance to Texas public colleges and universities and took the P-PST in March, 1984. A total of 642 students participated in the study, 512 White or other, 48 Blacks and 82 Hispanics. P-PST scores, race, number of college hours completed, and college aptitude scores were obtained from the student's college or university as a result of the signed release forms each student completed at the March, 1984 testing date.

Individual differences of cognitive organization and content were investigated as they relate to adaptation to remote, recent, and immediate life stress. Outside the field of stress, prior researchers have implicated cognitive organization with adjustment and cognitive content with specific psychopathology. As for behavioral adaptation to life stress, cognitive organization was viewed as a major factor in emotional vulnerability and adjustment, and cognitive content as a major factor in the mood disturbance of depression. Behavioral adaptation was defined in terms of current emotional vulnerability, adjustment and negative changes in the immediate (last six months), recent (over six months), and remote (over one year) past.

The subjects were 69 graduate faculty advisors, 187 foreign graduate students, and 184 American graduate students who were enrolled at North Texas State University in the Spring Semester, 1984. Statistical techniques used for data analysis include frequency distributions, percentages, means, and Mann-Whitney U test. Significant differences were determined by the two-tailed test of significance at or beyond the .05 level.

The problem of this study was to determine which of a list of forty-seven art competencies designed by the North Carolina Department of Public Instruction for K-12 art specialists were most essential for early childhood and intermediate elementary classroom teachers. Four-point Likert-type scaled instruments were designed and sent to three types of North Carolina educators: (a) 200 elementary classroom teachers, stratified into two equal subgroups of early childhood and intermediate teachers; (b) 100 K-12 art specialists; and (c) all art teacher educators employed at colleges and universities with state approved programs in art education. These subjects were asked to respond to the relevance of each competency for the elementary classroom teacher.

This study investigated the relationship between stress and pain crisis incidence in pediatric Sickle Cell Anemia (SCA). It was hypothesized that SCA children were exposed to higher levels of stress than healthy children. It was also hypothesized that a significant positive correlation existed between level of stress and pain crisis incidence both within and between years. The sample consisted of 20 Black elementary school children with SCA. There were 12 female and 8 male children. The period of investigation included the calendar years 1983 and 1984. Pain crisis incidence was determined through parent interviews and verified by a review of medical records.

This study was undertaken to investigate the influence of a military counselor s attire on potential clients expressed perceptions of and preferences for a counselor. Ninety volunteer participants were selected from a large southwestern Air Force base. Participants ranged in age from 18 to 46 years, with 68 male and 22 female volunteers. Rank was divided into 69 enlisted personnel (56 males and 13 females) and 21 officers (12 males and 9 females). Three videotapes were made depicting a counselor in three attire conditions: civilian; military officer; and military enlisted. A pilot study was completed which validated the research assumption that the videotapes differed only in the counselor's attire conditions. Participants were randomly assigned to three treatment groups. After each group was shown a videotape portraying the counselor in one of the three attire conditions, the participants were administered the Counselor Rating Form and the Referral Questionaire. The Counselor Rating Form is composed of three scales which assess perceptions of a counselors' trustworthiness, attractiveness, and expertness. The Referral Questionaire assesses subjects preferences to see a specific counselor in the event counseling is desired. Two main hypotheses, each having three subhypotheses, were developed for the study. The first hypothesis compared participants …

A variety of aquatic bacteria were isolated and tested for their ability to degrade humic substances and their aromatic residues/monomers which serve as precursors of the trihalomethanes (THMs) found in chlorinated drinking waters. The majority of them were Gram-negative, oxidative types dominated by pseudomonads. Most of the 146 isolates were found to utilize as their sole source of carbon several or more of ten aromatic compounds known to be products of degradation of humus and also to be precursors of THMs. The aromatics tested, with percent of the isolates utilizing the compound in parentheses, were: p-hydroxybenzoate (49), vanillic acid (48), 3,5-dihydroxybenzoic acid (16), syringic acid (19), vanillin (30), benzoic acid (27), ferulic acid (34), resorcinol (9), catechol (8) and protocatechuic acid (27).

Various modern spectroscopies have been utilized with considerable success in recent years to probe the dynamics of vibrational and reorientational relaxation of molecules in condensed phases. We have studied the temperature dependence of the polarized and depolarized Raman spectra of various modes in the following dihalomethanes: dibromomethane, dichloromethane, dichloromethane-d2, and bromochloromethane. Among other observed trends, we have found the following: Vibrational dephasing times calculated from the bend) and (C-Br stretch) lineshapes are of the same magnitude in CI^B^. The vibrational dephasing time of [C-D(H) stretch] is twice as long in CD2Cl2 as in CH-^C^, and the relaxation time of (C-Cl stretch) is greater in CI^C^ than in CD2CI2. Isotropic relaxation times for all three stretching vibrations are significantly shorter in C^BrCl than in CI^C^ or CI^B^. Application of the Kubo model revealed that derived modulation times are close to equal for equivalent vibrations in the various dihalomethanes. Thus, the more efficient relaxation of the A^ modes in CE^BrCl can be attributed almost entirely to the broader mean squared frequency perturbation of the vibrations in this molecule.

Bacillus subtilis (ATCC 19659) were damaged by exposure to various concentrations of glutaraldehyde, as shown by decreased germination rates. The damage caused was repaired or otherwise obviated by the presence of sodium lactate in the holding medium. When two different salts of lactic acid were compared for ability to overcome the effect of glutaraldehyde, it was found that calcium salt of lactate was more effective than the sodium salt. The damage repair system involved l-alanine, lactate and either the sodium or calcium ions. The study involved in determining the difference in efficiency of spore repair was due to an organic or an amino acii snowed that the presence of two carboxylic functional groups did not effectively alter the reactivity.

This investigation was concerned with the problem that the staff development needs of child-care personnel in juvenile detention facilities in the State of Texas have not been identified and described. The study utilizes the Delphi technique in determining juvenile detention administrators' perceptions of the skills/knowledge required to be a competent detention child-care worker. The assumption was made that detention administrators can supply relevant input to study.

Recent interest in the area of spouse abuse has resulted in many attempts to define and understand this problem. The present study reviewed the literature addressing spouse abuse, its various definitions and presumed causes. Theories regarding the cause of spouse abuse were presented in two groups: those focussing on society as the perceived cause of abuse and those on either men or women as precipitators of abuse. The purpose of the study was threefold. The first was to explore the relationship between gender and perception of spouse abuse. The second was to examine whether attitudes toward women varied as a function of perception of spouse abuse. Third, the study explored the relationship between situational variables and perceptions of spouse abuse. Finally, although not an initial purpose of the study, differences in perceptions of spouse abuse were compared among abused and nonabused groups.

After an initial four week baseline period, during which headache activity and medication consumption were monitored, 28 migraineurs were randomly assigned to one of the following groups: (a) the biofeedback temperature warming group, (b) the visual imagery group, (c) the combined treatment group, or (d) the comparison group. All four groups continued to monitor their headache activity and medication consumption during the eight week treatment period and the eight week follow-up period. A two way analysis of variance computed on groups over time indicated a significant decrease in headache activity and medication consumption. During the follow-up period (a) the combined treatment group had significantly fewer headaches than the biofeedback group or the comparison group and (b) the visual imagery group and the combined treatment group had significantly fewer headache hours than the biofeedback group or the comparison group. These results do not appear to be attributable to differences between groups on the amount of time spent in home practice or subjective ratings of relaxation. There was no consistent relationship between increases in finger temperature and headache activity improvement. Decreases in powerful other scores, as measured by the Health Attribution Test, and increases in subjective ratings of internal control were consistent …

This study compared three methods of detecting test item bias, the chi-square approach, the transformed item difficulties approach, and the Linn-Harnish three-parameter item response approach which is the only Item Response Theory (IRT) method that can be utilized with minority samples relatively small in size. The items on two tests which measured writing and reading skills were examined for evidence of sex and ethnic bias. Eight sets of samples, four from each test, were randomly selected from the population (N=7287) of sixth, seventh, and eighth grade students enrolled in a large, urban school district in the southwestern United States. Each set of samples, male/female, White/Hispanic, White/Black, and White/White, contained 800 examinees in the majority group and 200 in the minority group. In an attempt to control differences in ability that may have existed between the various population groups, examinees with scores greater or less than two standard deviations from their group's mean were eliminated. Ethnic samples contained equal numbers of each sex. The White/White sets of samples were utilized to provide baseline bias estimates because the tests could not logically be biased against these groups. Bias indices were then calculated for each set of samples with each of the three …

The purpose of this study was to determine whether the wives' perceptions of personal control over the process of childbirth were related to couples' choices and utilization of three birthing alternatives (home birth, unmedicated hospital birth, and medicated hospital birth). The wives' perceived control over the childbirth process was expected to vary inversely with the level of medical intervention in the birthing alternative chosen. The home birth mothers were expected to perceive themselves as having more control over childbirth than were the unmedicated hospital group mothers, and the unmedicated hospital group mothers more than the medicated hospital group mothers. The husbands' perception of their wives' perceived control in childbirth and their participation was also measured.