Using a case study approach, this investigation focused on the deliberations and decision-making processes involved in the development of a physical science curriculum to be delivered by interactive videodiscs. The mediating factors that influenced the developmental processes included the participants and their perceptions, their decisions and factors influencing their decisions. The Curriculum and Instruction Advisory Committee of the Texas Learning Technology Group was selected as the subject of this study which used qualitative data collection methods. Data collection included participant observation of curriculum meetings followed by structured interviews of the participants. Document analyses were triangulated with the observations and interviews to ascertain influences on decision-making processes. Developmental processes indicated the emergence of staff and committee procedures. Procedures were influenced by school district and personal philosophies, teacher and student needs, and constraining factors such as state Developmental processes indicated the emergence of staff and committee procedures. Procedures were influenced by school district and personal philosophies, teacher and student needs, and constraining factors such as state mandates. Other influencing factors included research, tradition, and politics. Core curriculum was to be delivered by interactive videodiscs and include remediation and enrichment loops along with laboratory simulations. Participants stressed that students perform traditional laboratory experiments …

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.

Drumming behavior is described for the first time in 33 North American Plecoptera species, and signals of an additional five species, Pteronarcys pictetii, Acroneuria abnormis, Paragnetina media, Clioperla clio and Isogenoides zionensis, are further detailed. An out-group comparison of behavioral characters in all 104 world species whose drumming is known showed that the behavior is more advanced in the Arctoperlaria Group Systellognatha than in the Group Euholognatha. In general, tapping, monophasy, touching, sequenced exchange and less than 50 taps/answer are ancestral states, and rubbing, grouping, phasing, tremulation, interspersed exchange and equal or more than 50 taps/answer are derived states. There has been some co-evolution between abdominal structure and drumming behavior. Scanning Electron Micrographs of 30 species showed that the primitive state of tapping is ascociated with three classes of abdominal structure: (1) absence of derived structures, (2) lobes or vesicles, and (3) hammers. The derived behavior of rubbing, however, occurs only in species with derived structures, and is predominant in species having vesicles and hammers. Drumming can be used as a line of evidence to aid in defining genera and species, since the behavior has a variable degree of specificity or exclusiveness in all species, particularly in groups of species …

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 …

Baroreflex function and cardiovascular responses to lower body negative pressure during selective autonomic blockade were evaluated in endurance exercise trained (ET) and untrained (UT) men. Baroreflex function was evaluated using a progressive intravenous infusion of phenylephrine HCL (PE) to a maximum of 0.12 mg/min. Heart rate, arterial blood pressure, cardiac output and forearm blood flow were measured at each infusion rate of PE. The reduction in forearm blood flow and concomitant rise in forearm vascular resistance was the same for each subject group. However, the heart rate decreases per unit increase of systolic or mean blood pressure were significantly (P<.05) less in the ET subjects (0.91 ± 0.30 versus 1.62 ± 0.28 for UT). During progressive lower body negative pressure with no drug intervention, the ET subjects had a significantly (P<.05) greater fall in systolic blood pressure (33.8 ± 4.8 torr versus 16.7 ± 3.9 torr). However, the change in forearm blood flow or resistance was not significantly different between groups. Blockade of parasympathetic receptors with atropine (0.04 mg/kg) eliminated the differences in response to lower body negative pressure. Blockade of cardiac sympathetic receptors with metoprolol (0.02 mg/kg) did not affect the differences observed during the control test. It was …

This investigation represents an initial attempt toward the construction of a general life cycle theory of parent-child relations. Emphasis was placed on the parent-adult child relationship with the onset of a filial crisis, e.g., due to illness. After the theory was described, two of the five propositions comprising this orientation (i.e., propositions four and five) were analyzed through a series of twenty-five hypotheses. The objectives of these hypotheses were (a) to analyze the relationship between the length of time involved in various patterns of filial responsibility and the likelihood that these patterns will become institutionalized as obligatory roles and (b) to determine how factors associated with these emergnt role obligations contribute to the cost of caregiving. A probability sample of 180 caregivers was obtained from within the Dallas/Ft. Worth area. Multiple and partial correlation analyses and the use of Student's t revealed that the length of time involved as a caregiver was significantly related to the number of informal caregiving roles performed by adult children. In addition, results indicated that the length of involvement in each caregiving role examined (i.e., household care, transportation service, personal care, medical attention, meal preparation, financial management and mobility assistance) was significantly related to (a) …

The problem this descriptive study dealt with was the fear (computerphobia) administrators, teachers, and noneducators have concerning the acceptance of microcomputers in the educational setting. The MAXHELP Project is an Air University sponsored program to assist the local schools in scientific and technological education. The 12 hour MAXHELP Microcomputer Orientation Course has graduated over 500 educators from seven Alabama school districts. This study used the Stages of Concern Questionnaire (SoCQ). This instrument was developed at the Inter-Institutional Program for the Reasearch and Development Center for Teacher Education, The University of Texas at Austin, by Hall, George and Rutherford. The SoCQ was mailed to a random sample of 300 MAXHELP graduates. A total of 212 responses were used in the study. This report concludes that the administrator and teacher groups are moving through the stages of concern when compared with the typical "non-user." Teachers show greater concerns relating to Management and administrators have greater concerns on Consequence, Collaboration, and Refocusing. Administrators are not users of microcomputers in the classroom, but are very concerned about how to facilitate the spread of microcomputers throughout the school curriculum. In general, the data indicate more similarity of teaching concerns by age, years teaching experience, and …

The Behavioral Medicine Questionnare (BMQ) is a 44- item instrument administered via a computer CRT display or pencil and paper. The BMQ was designed to help primary care physicians treating spinal disorders to screen for emotional factors which warrant further psychological evaluation. The test is composed of three scales: Anxiety, Depression, and Somatization. Concurrent validity for each scale was determined through comparisons with subject (n = 133) scores on clinician judgement ratings, pain drawings, and the MMPI. The psychometric properties of the test were supported through statistical analysis. Significant correlations were found between the BMQ, MMPI, and clinician ratings, with the latter showing relationships of lesser strength. The only significant correlation to subject generated pain drawings was to the BMQ depression scale. Analysis indicated the need for seperate norms for males and females. Further research is needed to facilitate measurement and interpretation of the BMQ.

This study attempted to explore the strength and nature of relationships between specific intellectual information processing skills included in a multi-dimensional model conceived by Guilford, and measured by Meeker's Structure of Intellect - Learning Abilities Test, and specific musical aural discrimination skills as measured by Gordon's Musical Aptitude Profile. Three research questions were posed, which involved determining the strength and the nature of the relationship between MAP melodic, rhythmic, and aesthetic discrimination abilities and the intellectual information processing skills comprising the SOI - LA. Both instruments were administered to 387 fourth, fifth, and sixth graders from schools in the Dallas area. After a pilot study established the feasibility of the study and reliability estimates of the test instruments, multiple regression analysis determined that 10% to 15% of the variance between intellectual information-processing skills and the individual musical aural discrimination abilities was in common (r = +.32 to r = +.39). It was further determined that only six specific SOI intellectual dimensions, all involving the skills of "Cognition" and "Evaluation", were significantly related to the musical aural discrimination abilities. Through the use of the Coefficient of Partial Correlation, the strength of each individual information-processing skill's unique contribution to that covariance was …

The purpose of the study was to make an assessment of Arkansas middle school/junior high art programs using National Art Education Association standards. Data were collected from questionnaires, curriculum guides, and school visitations. Participating in the study were 127 schools enrolling 53,502 students of which 14,755 (28%) were taking art classes. For comparisons, the state was divided into five regions.

The energy states of C₃ᵥ symmetric top polyatomic molecules were studied. Both classical and quantum mechanical methods have been used to introduce the energy states of polyatomic molecules. Also, it is shown that the vibration-rotation spectra of polyatomic molecules in the ground and excited vibrational states can be predicted by group theory. A comprehensive model for predicting rotational frequency components in various v₁₀ vibrational levels of propyne was developed by using perturbation theory and those results were compared with other formulas for C₃ᵥ symmetric top molecules. The v₁₀=1,2,3 and ground rotational spectra of propyne in the frequency range 17-70 GHz have been reassigned by using the derived comprehensive model. The v₁₀=3 and v₁₀=4 rotational spectra of propyne have been investigated in the 70 GHz, and 17 to 52 GHz regions, respectively, and these spectral components assigned using the comprehensive model. Molecular constants for these vibrationally excited states have been determined from more than 100 observed rotational transitions. From these experimentally observed components and a model based upon first principles for C₃ᵥ symmetry molecules, rotational constants have been expressed in a form which enables one to predict rotational components for vibrational levels for propyne up to v₁₀=5. This comprehensive model also …

Postoperative spinal patients were randomly assigned to one of three treatment conditions and were taught five adaptive movements by occupational therapists. The Control group received routine hospital occupational therapy; the Placebo group participated in an imagery relaxation task unrelated to the mental practice task of the Imagery group, which was shown line drawings of the adaptive movements under study, provided movement instructions, and asked to mentally practice each movement in a familiar, daily living situation. Thirty-five patients returned for follow-up, and a measure of outcome was obtained through the use of a quantified movement assessment instrument. Subjective ratings for anxiety, rumination, and imagery were made by the occupational therapists. An occupational motoric-symbolic rating scale was developed to assess the symbolic portion of the patient's job experience. Statistical procedures including chi square, analysis of variance, and Pearson correlation were performed. Results were in the predicted direction although statistical significance was not achieved. Possible explanations for the obtained results were discussed.

The opinions of individuals may be influenced by groups of different gender configurations. This influence was studied by asking college students to respond to a series of statements in pretest and post-test settings. Post-test settings included the use of manipulatively constructed confederate groups to influence the subjects' responses. A pretest was administered in an anonymous nonthreatening environment. Within a week, the subjects were post-tested in a setting with four "confederates" who had previously been instructed to unanimously voice opposite answers to the subjects' initial responses to pretest questions. The objective of this experiment was to determine the number of opinions that were changed when confronted with opposing views. Change of opinions between pretest and post-test were considered to be operational definitions of "conformity."

This investigation compared achievement of boys and girls in second grade who were seven years old in June, July, and August of 1983 to the boys and girls in second grade who were eight years old in September, October, and November of 1983. The students were tested using the Iowa Test of Basic Skills using the following areas: reading, total math, and composite scores. The study also looked at the correlation of sex and age of students who had been retained in first grade. A comparison of teacher grades to standardized test scores and ability grouping was also presented. One way analysis of variance was applied to the test results. A chi square test of independence was conducted on students retained in the first grade to determine if interaction between sex and age was indicated. Older children scored higher in all three areas measured, while girls scored higher in reading. This may seem contradictory, but is not. Age was significant beyond the .05 level, while sex was significant beyond the .001 level. This difference is explained by the extremes in means for younger boys and older girls. Since first grade curriculum emphasizes reading, this gave girls a definite advantage over …

The problem with which this study was concerned was that of measuring and examining the level of job satisfaction among Texas high school band directors. The specific methodology included a quantitative comparison through confirmatory factor analysis of the factor structures of the sample of 109 Texas high school band directors and the norming population of 1460 industrial workers. There were two purposes for conducting the study. First, the relationships between an assortment of demographic variables and measured job satisfaction were examined. The second purpose was to measure the degree of fit of the Frederick Herzberg Dual-Factor Theory to the factor structure of the sample. Correlation, t ratio, and one-way analysis of variance were used to compare the demographic variables with measured job satisfaction. Confirmatory factor analysis through LISREL was used to examine and compare factor structures. Job satisfaction was measured with the Minnesota Satisfaction Questionnaire which was developed and tested through the Work Adjustment Project, Industrial Relations Center at the University of Minnesota. The twenty-item short-form retained the general reliability and validity measures of the 100-item long form. The Demographic Data Sheet is a researcher-constructed document used to gather data for use in classifying respondents by educational background, school classification, …

The purpose of this study was three-fold: 1. To determine the amount and direction of changes in sources of funding for the Regional Education Service Centers from 1979 to 1984. 2. To determine the percent of change in programming expenditures of the Regional Education Service Centers from 1979 to 1984. 3. To rate the changes in quality of programming as perceived by the superintendents of the local school districts receiving services from 1979 to 1984. A review of the literature and a brief history of the Regional Education Service Centers of Texas were followed by tabular and narrative descriptions of the findings. Deflated data, to account for inflation, were derived by applying Bureau of Labor statistics formulas to dollar amounts supplied by the Regional Education Service Centers. Each of the five Education Service Centers included in the study experienced a decrease in total funds, due chiefly to a cut in federal and state support. Although local contributions increased in four out of five of the Regions during the five-year period, the net result to the Centers was a decrease in funding ranging from 23.2 percent to 51.8 percent. The impact on programming was severe. Of the nine major services on …

Because international students are an increasingly significant aspect in American colleges and universities and on the North Texas State University campus in particular, this study was undertaken to explore the intercultural clash which Thai students at North Texas State University experience. Twenty-two Thai students were interviewed in depth using the oral history method. Ten faculty and administrators who work with international students were interviewed concerning their observations of Thai students. The information gleaned from these thirty-two interviews and from an examination of the basic socio-cultural differences between Thailand and the United States resulted in the isolation of the following basic difficulties. 1. Thais do not have command of written and oral English. 2. Americans do not have an appreciation of foreigners and lack tolerance in everyday exchanges with them. 3. Thais avoid becoming involved in American society. 4. Thais are not efficiently prepared for the American classroom. 5. American instructors do not appear prepared to handle the problems of Thai students. The study also developed a number of suggested solutions: 1. Raise the consciousness of Americans concerning Thai students; 2. Provide more effective ways of improving oral and listening skills in the English proficiency of Thai students beginning with American-directed …

The problem with which this study was concerned is a comparison of the problem solving ability of physics and engineering students in a two year college. The purpose of this study was to compare the problem solving ability of physics and engineering students in a two year college and determine whether a difference exists. Data was collected from an instrument administered to twenty-six engineering students and twenty-three physics students as a major examination in their regular courses. The instrument was validated by being taken from representative texts, by approval of the instructors using the examination, and by approval of a physics professor at a university. The instructors and professor were considered a panel of experts. Comparison of test scores of students who were registered in both physics and engineering and who took the exam twice, established concurrent validity of the instrument. A questionnaire was also administered to both groups of students to determine their personal problem solving strategies, if any, and to collect other demographic data. Additional demographic data, as available, was 2 obtained from the registrar. Instructor profiles were determined from interviews with each of the four instructors involved. Analysis of the data indicated there is a significant difference …

The main purpose of this study was to determine the effect of Texas House Bill 72 on equalization of finances in the public school districts of Texas. House Bill 72 is a finance reform bill which was passed by the Texas Legislature during the Summer of 1984. This study involves basically three steps. First, current criteria for equity as defined by school finance "experts" and recent definitive court decisions were determined. Second, financial data from the Texas Education Agency were statistically analyzed for the 1984-1985 school year. Third, the statistical analysis was used to determine if the current Texas school finance plan meets the current criteria for equity. The population used in the study was 1,068 school districts. Based on the findings of this study the following conclusions were drawn. 1. The use of a per capita flat grant by the Texas Public School Finance System contributes to the unequalizing of financial resources available to school districts. 2. School districts with greater property index values are required to exercise very little effort toward the support of their public schools. 3. School districts with high property index values tend to have lower effective tax rates and high per-pupil expenditures. 4. School …

Respiratory and metabolic patterns in response to variations in exercise workload (WL) and pedal frequency (RPM) were examined in 10 healthy males. Each subject performed WLs of low (L), moderate (M) and high (H) intensity, equivalent to 25%, 50% and 75% V02 m a x at 7 pedal frequencies (40, 50, 60, 70, 80, 90 and 100 RPM). ANOVA ( 3 X 7 design) indicated that WL and RPM had independent and significant effects on all respiratory and metabolic measures; i.e., the greater the WL and RPM, the higher the HR, V02, VC02, Ve, Fb, Vt, Vt/Ti, Vt/Te and Ti/TtQt and the lower the Ti and Te. However, analysis of the interaction effect revealed different response patterns for Fb, Vt, Ti, Vt/Ti, Vt/Te and Ve among the WLs. During L-WL, increases in RPM produced increases in Ve which were due to progressive increases in both Fb and Vt. However, during M-WL and H-WL, increases in RPM produced increases in Ve which were accomplished by a constant Vt and a progressive increase in Fb. My findings suggest that during low WLs, the signal for Vt is dependent on rate of contraction, while during M-WL and H-WL, the signal for Vt appears …

The purpose of the study was to investigate conflicts in the perceptions of band directors, band parents, band students, and selected school personnel regarding the role and scope of their respective band programs. The problems were to examine the relationships among these four groups in terms of selective perception, perceptual constancy, and polarization. Questionnaires were developed in order to survey the senior public high schools in Cedar Rapids, Iowa. In addition to demographic data, the questionnaires included perceptions about public performances, marching, concert, and jazz bands; contests and festivals; and other band related activities which might be desirable in a band program. The questionnaires concluded with opportunities for open-ended comments and suggestions about the survey instrument and the band program. Statistical computations included one-way analysis of variance, chi-square test, frequency counts, and cross-tabulations. Qualitative analyses and reports of interviews helped to clarify and interpret all statistical findings.

The purpose of this study was to analyze a representative seventy-eight current young adult books to determine the extent to which they contain items which are objectionable to would-be censors. Seventy-eight books were identified which fit the criteria of popularity and literary quality. Content analysis was selected as the quantitative method of research. Each of the seventy-eight young adult books was analyzed for the six categories which were established through prior research. The six categories include profanity, sex, violence, parent conflict, drugs, and condoned bad behavior. These categories were tallied each time they occurred in the books. Reliability was assured with a rating of .98 by a committee of six professionals. The data reveal that profanity occurred more times in the seventy-eight books than the other five categories with a total of 5,616. The category of drugs was noted 4,171 times. References to sex followed in number with 3,174. The categories which occurred the least were violence with 1,849 occurrences and condoned bad behavior with only 489 occurrences. By applying a frequency index formula to determine the number of objections in each book in relation to the number of pages, a comparison among the books could be made. The analysis, …

This study examined the effects and expectations of external economic dependence on foreign investment policy outputs with particular reference to the Nigerian experience between 1954 and 1980. Three basic kinds of external economic dependence were studied: foreign investment, the penetration of the Nigerian economy by foreign capital through the agency of the multinational corporations (MNCs); foreign trade, a measure of the Nigerian economy's participation in the world market; and foreign aid (loans and grants), a measure of Nigeria's reliance on financial assistance from governments and international financial inst itutions. For the most part, the level of Nigeria's economic dependence was very high. However, economic dependency is not translated into changes in foreign investment policy in favor of the foreign investors in Nigeria as is predicted by the dependency paradigm. The Nigerian case casts doubt on the dependency paradigm as a framework for fully explaining factors that may determine foreign direct investment policy changes that occur in a less developed Third World country. In other words, the dependency paradigm has a limited explanatory power; there is a factor independent of the economic factor operating out of the control of global capitalism (the center of the center in alliance with the center …

The purpose of this study was to determine the role of high school assistant principals as perceived by principals, assistant principals, and teachers. The population in this study consisted of the principals, assistant principals, and teachers in Class 5A high schools in Texas during the 1985- 86 school year. One hundred and twenty of the Class 5A high schools were randomly selected to participate in the study. One principal, one assistant principal, and one teacher from each school were asked to respond to the survey. A questionnaire was designed to measure the perception of the three groups under study and contained seventy-seven job responsibilities which were divided into six major areas. The six areas were school management, staff personnel, community relations, student activities, curriculum and instruction, and pupil personnel. Eighteen items were eliminated through clarity, appropriateness, and reliability studies. Each respondent was asked to rate the degree of involvement of assistant principals for each job responsibility listed in two columns labeled current and ideal. Five hypotheses were developed for the study. Three hypotheses were tested by a multivariate one-way analysis of variance with repeated measures, and two were tested using a univariate one-way analysis of variance. The .05 level of …