Instructional elements in an online information literacy Open Educational Resource (OER) and their influence on learner achievement, satisfaction, and self-efficacy

This study tested the influence of instructional elements within an online Open Educational Resource (OER) focused on information literacy (IL) on outcome measures of IL achievement, learner satisfaction and IL self-efficacy among undergraduate students. An online OER was designed to address the domains of access, evaluation and communication of IL guided by the notion of instructional scaffolding and self-regulated learning. Participants were randomly placed into one of six different OER conditions: (a) full version with all instructional elements, (b) lean version, (c) version without tooltip text, (d) version without embedded practice questions, (e) version without learning objectives and (f) version without summaries. There were no significant differences found across the six conditions on the dependent measures. Participants averaged 58% for IL achievement, performing slightly better in the domain of access versus evaluate and communicate. Limitations include a controlled laboratory setting where participants were not necessarily motivated to complete the study tasks at a high level of achievement. Future research can explore more ecologically valid environments where learners might be more motivated, along with more rigorous intervention and assessment construction. This paper includes implications for educators and researchers to explore the established and innovative instructional elements that are natural affordances of an online OER in IL. This paper presents innovative IL instruction that does not require instructor or learner training and evaluates its effectiveness using a sound, replicable methodological approach to isolate the effects of the individual instructional elements

Investigation of the Validity Evidence of the Information Literacy Self-Efficacy Scale (ILSES) Among Undergraduate Students

The purpose of this research was to provide validity evidence for the Information Literacy Self-Efficacy Scale (ILSES), a widely used instrument that was constructed in 2006. The researchers were interested in investigating the validity of this instrument due to the evolution of the information environment that has taken place since the scale’s original development, mostly as a result of the prominence of the Internet. Data were collected from N = 253 undergraduate students participating in a broader information literacy research study. Data were subjected to descriptive analyses, internal consistency reliability, and a confirmatory factor analysis (CFA). After evaluating three different CFA models based on the ILSES’ construction, the researchers determined that a four-factor model fit the data with the following latent constructs: 1) Initiating the search strategy, 2) Assessing and comprehending the information, 3) Interpreting, synthesizing, and using the information, and 4) Evaluating the product and process. A discussion of these findings is provided in light of the evolving information environments in which undergraduate students are expected to use information for their academic, personal, and professional lives

Risk Factors for Course of Posttraumatic Stress Disorder Among Vietnam Veterans: A 14-Year Follow-Up of American Legionnaires

Risk factors affecting the course of posttraumatic stress disorder (PTSD) are poorly understood. As part of a larger study on characterizing exposure to herbicides in Vietnam, the authors investigated this issue in a random sample of 1,377 American Legionnaires who had served in Southeast Asia during the Vietnam War and were followed over a 14-year period. High combat exposure, perceived negative community attitudes at homecoming, minority race, depression symptoms at Time 1, and more anger at Time 1 predicted a more chronic course. Community involvement at Time 1 was protective and associated with decreased risk at Time 2. Discomfort in disclosing Vietnam experiences was associated with an increased risk for developing PTSD but did not predict its course. Combat exposure predicted PTSD course more strongly than any other risk factor. Findings suggest recovery from PTSD is significantly influenced by perceived social support

Persisting Posttraumatic Stress Disorder Symptoms and their Relationship to Functioning in Vietnam Veterans: A 14-Year Follow-Up

The authors examined the longitudinal association between persisting posttraumatic stress disorder (PTSD) symptoms and multiple domains of life functioning in a community sample of 1,377 American Legionnaire Vietnam veterans first assessed in 1984 and followed-up 14 years later. Almost 30 years after their return from Vietnam, 10% of veterans continued to experience severe PTSD symptoms. At all levels of combat exposure, persisting severe PTSD symptoms were associated with worse family relationships, more smoking, less life satisfaction and happiness, more mental health service use, and more nonspecific health complaints at the 14-year follow-up. Further investigation is needed to determine whether the PTSD-functioning relationship is causal and if successful treatment of PTSD is associated with improvement in functioning

Youth Single-Sport Specialization in Professional Baseball Players.

Background: An increasing number of youth baseball athletes are specializing in playing baseball at younger ages. Purpose: The purpose of our study was to describe the age and prevalence of single-sport specialization in a cohort of current professional baseball athletes. In addition, we sought to understand the trends surrounding single-sport specialization in professional baseball players raised within and outside the United States (US). Study Design: Cross-sectional study; Level of evidence, 3. Methods: A survey was distributed to male professional baseball athletes via individual team athletic trainers. Athletes were asked if and at what age they had chosen to specialize in playing baseball at the exclusion of other sports, and data were then collected pertaining to this decision. We analyzed the rate and age of specialization, the reasons for specialization, and the athlete\u27s perception of injuries related to specialization. Results: A total of 1673 professional baseball athletes completed the survey, representing 26 of the 30 Major League Baseball (MLB) organizations. Less than half (44.5%) of professional athletes specialized in playing a single sport during their childhood/adolescence. Those who reported specializing in their youth did so at a mean age of 14.09 ± 2.79 years. MLB players who grew up outside the US specialized at a significantly earlier age than MLB players native to the US (12.30 ± 3.07 vs 14.89 ± 2.24 years, respectively; Conclusion: This study challenges the current trends toward early youth sport specialization, finding that the majority of professional baseball athletes studied did not specialize as youth and that those who did specialize did so at a mean age of 14 years. With the potential cumulative effects of pitching and overhead throwing on an athlete\u27s arm, the trend identified in this study toward earlier specialization within baseball is concerning

Combat and Herbicide Exposures in Vietnam among a Sample of American Legionnaires

A cross-sectional survey of 6810 randomly selected members of The American Legion in six states who served in the U.S. Armed Forces during the Vietnam Era was conducted by a mailed questionnaire. Combat stress was evaluated by a previously validated eight-item scale. Exposure to Agent Orange and other herbicides was estimated via exposure probability index previously developed by the authors which uses an algorithm based on the combined Air Force and Joint Services HERBS files of spray data. Two-fifths of the men had served in Southeast Asia, generally at the same time during which the major proportion of herbicides were used; the remaining subjects served elsewhere. Both combat and Agent Orange exposure exhibited distinct, meaningful distributions among Vietnam veterans with service in Southeast Asia and were also correlated with each other (r = 0.24). Our analysis demonstrates conclusively that mere presence in Vietnam cannot be used as a proxy for exposure to Agent Orange. Categorization of Vietnam veterans according to herbicide exposure can be successfully accomplished, based on an existing detailed herbicide application data base. This analysis, together with the consistent dose-related results obtained in this series of papers on health and behavioral effects, demonstrates the utility of questionnaire-derived herbicide and combat exposure measures for epidemiologic study of Vietnam veterans

Utilization, Attitudes, and Experiences of Vietnam Era Veterans with Veterans Administration Health Facilities: The American Legion Experience

A random sample of American Legion members in six states who had served in the Armed Forces during the Vietnam Era was conducted through a mailed questionnaire, in order to determine patterns of usage of Veterans Administration health facilities, as well as attitudes toward the VA and experiences at these facilities. Of the 6810 male respondents, 42.0% had served in Southeast Asia. These subjects were categorized according to their level of combat in South Vietnam. Thirty-six percent of those who had served in Southeast Asia had used VA health facilities, compared to only 18% of men who served elsewhere. Among Southeast Asia veterans, combat level was an important predictor of extent of usage of VA facilities for problems of both physical and mental health. Combat level was also associated with lack of basic and major medical insurance. While men with lower incomes tended to make greater use of VA mental health facilities, nearly one-fourth of mental health users had family incomes above $30,000. Despite their greater usage of the VA, men with higher combat levels expressed lower feelings of security about this agency, and rated its staff less helpful and of lower quality than did men who experienced lower levels of combat. On the other hand, higher combat veterans thought themselves better informed about VA services. Men who had gone to the VA for mental health assistance reported a disturbingly low frequency of having been asked basic questions that relate to possible diagnosis of post-traumatic stress disorder (PTSD), questions related to combat, which may be one of its etiologic factors, or other questions relating to their military history'. Because combat level in Vietnam veterans is a major determinant of both attitudes toward and utilization of VA health facilities, the VA as well as other health agencies which deal with Vietnam veterans should be especially sensitive to this factor, and should take it into consideration when evaluating veterans' physical and mental health

Social and Behavioral Consequences of the Vietnam Experience among American Legionnaires

One aspect of a cross-sectional questionnaire study of a sample of Vietnam veterans belonging to The American Legion was devoted to analysis of social and behavioral consequences of service in Southeast Asia. Members of the study population were stratified by whether they served in Southeast Asia and, within the Southeast Asia group, by varying degrees of exposure to combat and to herbicides. Using validated scales for behavioral affect and for the exposure measures for combat and herbicides, a wide range of adverse effects was observed. Men who faced high levels of combat intensity were found to be at greater risk for divorce and for generally being less happy and satisfied with their lives, their marriages, their role as fathers, and as sexual human beings. Although in this population they have reached comparatively high levels of education, they earn significantly less money than peers of their same age and educational attainment. Vietnam veterans returning from combat were found to exhibit higher levels of behavioral disturbances, with mean scores for depression, anxiety, irritation, feelings of helplessness, and physical signs of depression significantly worse than noncombat peers. The lifestyle of combat veterans also continues to place them at greater risk for poor health. They smoke, drink, and use prescription drugs at rates significantly greater than the other veterans in this study. Combat veterans have had a significantly poorer rate of reduction and cessation of smoking and drinking than others in this population. Evidence is also presented which shows that for some of the behavioral outcomes measured, a negative interactive effect of concurrent exposure to herbicides is present

Health and Reproductive Outcomes among American Legionnaires in Relation to Combat and Herbicide Exposure in Vietnam

History of diagnosed illnesses, medical symptoms, and reproductive outcomes and their relation to combat intensity and herbicide exposure were studied, via a mailed questionnaire, among 6810 American Legionnaires who served during the Vietnam War (42% in Southeast Asia, 58% elsewhere). Heart disease, venereal disease, and benign fatty tumors were reported significantly more often by Vietnam veterans than by controls. Combat intensity was significantly dosage-related to history of high blood pressure, ulcers, arthritis and rheumatism, genito-urinary problems, nervous system disease, major injury, hepatitis, and benign fatty tumors. Agent Orange exposure was significantly dosage-related to history of benign fatty tumors, adult ache, skin rash with blisters, and increased sensitivity of eyes to light. Rates of the latter two conditions and of change in skin color were especially elevated in men whose military occupations involved direct handling of herbicides. Five "symptom complex" scales were constructed via factor analysis to measure degrees of feeling faint, fatigue or physical depression, body aches, colds, and skin irritation. Means of all five scales were significantly higher in Vietnam veterans compared to controls, and in herbicide handlers compared to non-handlers. Both combat and Agent Orange exposure were significant, independent predictors of each of the five scales. Neither combat nor Agent Orange exposure was associated with difficulty in conception, time to conception of first child, or to birthweight or sex ratio of offspring, but maternal smoking was strongly related to reduced birthweight. The percentage of spouses' pregnancies which resulted in miscarriages was significantly higher for Vietnam veterans than controls (7.6% vs 5.5%, P & 0.001). Logistic regression analysis showed that Agent Orange exposure and maternal smoking were both independently and significantly associated with miscarriage rates in a dose-related manner