A systematic search of the research literature from 1996 through July 2008 identified more than a thousand empirical studies of online learning. Analysts screened these studies to find those that (a) contrasted an online to a face-to-face condition, (b) measured student learning outcomes, (c) used a rigorous research design, and (d) provided adequate information to calculate an effect size. As a result of this screening, 51 independent effects were identified that could be subjected to meta-analysis. The meta-analysis found that, on average, students in online learning conditions performed better than those receiving face-to-face instruction. The difference between student outcomes for online and face-to-face classes—measured as the difference between treatment and control means, divided by the pooled standard deviation—was larger in those studies contrasting conditions that blended elements of online and face-to-face instruction with conditions taught entirely face-to-face. Analysts noted that these blended conditions often included additional learning time and instructional elements not received by students in control conditions. This finding suggests that the positive effects associated with blended learning should not be attributed to the media, per se. An unexpected finding was the small number of rigorous published studies contrasting online and face-to-face learning conditions for K–12 students. In light of this small corpus, caution is required in generalizing to the K–12 population because the results are derived for the most part from studies in other settings (e.g., medical training, higher education).

Evaluation of Evidence-Based Practices in Online Learning: A Meta-Analysis and Review of Online Learning Studies

https://www.acilci.net/wp-content/uploads/2014/02/Guidelines-for-reporting-reliability-and-agreement-studies-GRRAS-were-proposed.pdf

Guidelines for Reporting Reliability and Agreement Studies (GRRAS) were proposed.

Geriatricians have embraced the term "geriatric syndrome," using it extensively to highlight the unique features of common health conditions in older people. Geriatric syndromes, such as delirium, falls, incontinence, and frailty, are highly prevalent, multifactorial, and associated with substantial morbidity and poor outcomes. Nevertheless, this central geriatric concept has remained poorly defined. This article reviews criteria for defining geriatric syndromes and proposes a balanced approach of developing preliminary criteria based on peer-reviewed evidence. Based on a review of the literature, four shared risk factors-older age, baseline cognitive impairment, baseline functional impairment, and impaired mobility-were identified across five common geriatric syndromes (pressure ulcers, incontinence, falls, functional decline, and delirium). Understanding basic mechanisms involved in geriatric syndromes will be critical to advancing research and developing targeted therapeutic options, although given the complexity of these multifactorial conditions, attempts to define relevant mechanisms will need to incorporate more-complex models, including a focus on synergistic interactions between different risk factors. Finally, major barriers have been identified in translating research advances, such as preventive strategies of proven effectiveness for delirium and falls, into clinical practice and policy initiatives. National strategic initiatives are required to overcome barriers and to achieve clinical, research, and policy advances that will improve quality of life for older persons.

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Geriatric Syndromes: Clinical, Research, and Policy Implications of a Core Geriatric Concept

There is increasing concern that most current published research findings are false. The probability that a research claim is true may depend on study power and bias, the number of other studies on the same question, and, importantly, the ratio of true to no relationships among the relationships probed in each scientific field. In this framework, a research finding is less likely to be true when the studies conducted in a field are smaller; when effect sizes are smaller; when there is a greater number and lesser preselection of tested relationships; where there is greater flexibility in designs, definitions, outcomes, and analytical modes; when there is greater financial and other interest and prejudice; and when more teams are involved in a scientific field in chase of statistical significance. Simulations show that for most study designs and settings, it is more likely for a research claim to be false than true. Moreover, for many current scientific fields, claimed research findings may often be simply accurate measures of the prevailing bias. In this essay, I discuss the implications of these problems for the conduct and interpretation of research.

Why most published research findings are false

Geriatric syndromes : Clinical, research, and policy implications of a core geriatric concept. Commentary

Objectives To identify the impact of pressure ulcers (PUs) and PU interventions on health-related quality of life (HRQL). Design Systematic review and metasynthesis of primary research reporting the impact of PU and PU interventions on HRQL according to direct patient reports. Quality assessment criteria were developed and applied. Data extraction identified findings in the form of direct quotes from patients or questionnaire items and domain results. Combined synthesis of qualitative and quantitative research was performed using content analysis to generate categories and themes from findings. Thirteen electronic databases were searched, and hand searching, cross-referencing, contact with experts, and an online search was undertaken. No language restrictions were applied. Setting Adults with PUs in acute, community, and long-term care settings across Europe, the United States, Asia, and Australia. Participants Thirty-one studies including 2,463 participants with PUs were included in the review. Ages ranged from 17 to 96. Results The review included 10 qualitative and 21 quantitative studies; 293 findings, 46 categories, and 11 themes emerged. The 11 HRQL themes were physical impact, social impact, psychological effect, PU symptoms, general health, and other impacts of PUs: healthcare professional-client relationships, need for versus effect of interventions, impact on others, financial impact, perceived etiology, and need for knowledge. Conclusion There is evidence that PUs and PU interventions have a significant impact on HRQL and cause substantial burden to patients.

Impact of pressure ulcers on quality of life in older patients: a systematic review.

Patient risk factors for pressure ulcer development: systematic review.

Rationale and aims  Numerous prevalence studies have been conducted. The problem with these studies is that prevalence proportions cannot be compared with each other, because of differences in performance of each survey. There is no agreed standardized method for determining prevalence proportions. This study aimed to develop and pilot a uniform data collection instrument and methodology to measure the pressure ulcer prevalence and to get some insight into pressure ulcer prevalence across different patient groups in Europe.

Methods  Pressure ulcer experts from different European countries developed a data collection instrument, which included five categories of data: general data, patient data, risk assessment, skin observation and prevention. A convenience sample of university and general hospitals of Belgium, Italy, Portugal, UK and Sweden participated in the study. In each participating hospital, teams of two trained nurses who collected the data on the wards were established. All patients admitted before midnight on the day of the survey and older than 18 years were included.

Results  The data collection instrument and study procedure of the survey were found to be effective by all participants. 5947 patients were surveyed in 25 hospitals in five European countries. The pressure ulcer prevalence (grade 1–4) was 18.1% and if grade 1 ulcers were excluded, it was 10.5%. The sacrum and heels were the most affected locations. Only 9.7% of the patients in need of prevention received fully adequate preventive care.

Conclusion  The methodology is sufficiently robust to measure and compare pressure ulcer prevalence in different countries. The pressure ulcer prevalence was higher than expected and relatively few patients received adequate prevention. This indicates that more attention to prevention is needed in Europe.

Pressure ulcer prevalence in Europe: a pilot study

The effect of various combinations of turning and pressure reducing devices on the incidence of pressure ulcers.

Aim This paper reports the findings of a pilot study exploring the experience of older people living with pressure ulcers. Background Pressure ulcers are known to be a significant health burden, but little is known of the impact on the quality of life of the sufferer. They mainly affect older people, and this is a neglected group in previous studies of this topic. Methods A Heideggerian phenomenological approach was used and patients were recruited if they were over 65 years of age and had a grade 3 or 4 pressure ulcer that had been present for more than a month. Patients were recruited from multiple centres but the data were analysed centrally. The study took place in 2003-2004. Findings Analysis of the transcripts revealed three main themes, all with associated subthemes: pressure ulcers produce endless pain; pressure ulcers produce a restricted life; coping with a pressure ulcer. The endless pain theme had four subthemes: constant presence, keeping still, equipment pain and treatment pain. Some patients found that keeping still reduced their pain. Several patients also reported that pain was exacerbated by their pressure relieving equipment and at dressing change. There were three subthemes for the restricted life theme: impact on self, impact on others and consequences. Patients found that the pressure ulcer restricted their activities and had an impact on their families. In addition, for some, the restrictions delayed their rehabilitation. To cope with their pressure ulcers, patients developed ways of accepting their situation or comparing themselves with others. Conclusions Although a pilot, this study has produced a wealth of data that demonstrates the impact of pressure ulcers on people. While a larger study is required to obtain a European perspective, it is still reasonable to conclude that the issues of pain and restrictions should be considered in the development of pressure ulcer treatment and prevention guidelines.

Tom Defloor

Papers

Impact of pressure ulcers on quality of life in older patients: a systematic review.

Patient risk factors for pressure ulcer development: systematic review.

Pressure ulcer prevalence in Europe: a pilot study

The effect of various combinations of turning and pressure reducing devices on the incidence of pressure ulcers.

Patient stories of living with a pressure ulcer.