Statistical Analysis with Missing Data

Statistical Analysis With Missing Data (2nd ed.) (Book)

Resena de la obra de Don A. Dillman, Jolene D. Smyth y Leah Melani Christian: Internet, Phone, Mail and Mixed-Mode Surveys. The Tailored Design Method. New Jersey: John Wiley and Sons

https://dialnet.unirioja.es/descarga/articulo/7287796.pdf

Internet, phone, mail and mixed-mode surveys: the tailored design method: reseña

Seeming public apathy over climate change is often attributed to a deficit in comprehension. The public knows too little science, it is claimed, to understand the evidence or avoid being misled. Widespread limits on technical reasoning aggravate the problem by forcing citizens to use unreliable cognitive heuristics to assess risk. An empirical study found no support for this position. Members of the public with the highest degrees of science literacy and technical reasoning capacity were not the most concerned about climate change. Rather, they were the ones among whom cultural polarization was greatest. This result suggests that public divisions over climate change stem not from the public’s incomprehension of science but from a distinctive conflict of interest: between the personal interest individuals have in forming beliefs in line with those held by others with whom they share close ties and the collective one they all share in making use of the best available science to promote common welfare.

The Polarizing Impact of Science Literacy and Numeracy on Perceived Climate Change Risks

Public apathy over climate change is often attributed to a deficit in comprehension and to limits on technical reasoning. However, evidence suggests that individuals with the highest degrees of science literacy and technical reasoning capacity are not the most concerned about climate change and are the most culturally polarized.

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The polarizing impact of science literacy and numeracy on perceived climate change risks

We review the growing literature on health numeracy, the ability to understand and use numerical information, and its relation to cognition, health behaviors, and medical outcomes. Despite the surfeit of health information from commercial and noncommercial sources, national and international surveys show that many people lack basic numerical skills that are essential to maintain their health and make informed medical decisions. Low numeracy distorts perceptions of risks and benefits of screening, reduces medication compliance, impedes access to treatments, impairs risk communication (limiting prevention efforts among the most vulnerable), and, based on the scant research conducted on outcomes, appears to adversely affect medical outcomes. Low numeracy is also associated with greater susceptibility to extraneous factors (i.e., factors that do not change the objective numerical information). That is, low numeracy increases susceptibility to effects of mood or how information is presented (e.g., as frequencies vs. percentages) and to biases in judgment and decision making (e.g., framing and ratio bias effects). Much of this research is not grounded in empirically supported theories of numeracy or mathematical cognition, which are crucial for designing evidence-based policies and interventions that are effective in reducing risk and improving medical decision making. To address this gap, we outline four theoretical approaches (psychophysical, computational, standard dual-process, and fuzzy trace theory), review their implications for numeracy, and point to avenues for future research.

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How numeracy influences risk comprehension and medical decision making.

Much effort has been put into improving measures of health care quality. Although early research suggested that consumers made little use of quality reports, most reports were based on nonstandardized measures and were not user friendly. Information presentation approaches, however, will have a significant influence on what information is attended and used. The present research examines whether information presentation methods differentially influence consumers who differ in numeric skills. Results of three studies support the idea that "less is more" when presenting consumers with comparative performance information to make hospital choices. Results were particularly strong for those lower in numeracy, who had higher comprehension and made better choices when the information-presentation format was designed to ease the cognitive burden and highlight the meaning of important information. These findings have important implications for the sponsors of comparative quality reports designed to inform consumer decision making in health care.

Less is more in presenting quality information to consumers.

Current health care policy emphasizes improving health outcomes and the efficacy of health care delivery by supporting informed consumer choices. At the same time, health information often involves uncertainty, and many people may lack the skills and knowledge to process this information, manage their health and health care, and make informed choices. Innumeracy, an element of poor health literacy, is associated with the comprehension and use of important health information. We review this literature and examine what can be done to help less numerate people act more effectively and take charge of their health.

Numeracy Skill And The Communication, Comprehension, And Use Of Risk-Benefit Information

Research has demonstrated that individual differences in numeracy may have important consequences for decision making. In the present paper, we develop a shorter, psychometrically improved measure of numeracy—the ability to understand, manipulate, and use numerical information, including probabilities. Across two large independent samples that varied widely in age and educational level, participants completed 18 items from existing numeracy measures. In Study 1, we conducted a Rasch analysis on the item pool and created an eight-item numeracy scale that assesses a broader range of difficulty than previous scales. In Study 2, we replicated this eight-item scale in a separate Rasch analysis using data from an independent sample. We also found that the new Rasch-based numeracy scale, compared with previous measures, could predict decision-making preferences obtained in past studies, supporting its predictive validity. In Study, 3, we further established the predictive validity of the Rasch-based numeracy scale. Specifically, we examined the associations between numeracy and risk judgments, compared with previous scales. Overall, we found that the Rasch-based scale was a better linear predictor of risk judgments than prior measures. Moreover, this study is the first to present the psychometric properties of several popular numeracy measures across a diverse sample of ages and educational level. We discuss the usefulness and the advantages of the new scale, which we feel can be used in a wide range of subject populations, allowing for a more clear understanding of how numeracy is associated with decision processes. Copyright © 2012 John Wiley & Sons, Ltd.

Development and Testing of an Abbreviated Numeracy Scale: A Rasch Analysis Approach

PurposeChemotherapy-induced peripheral neuropathy (CIPN) may persist after treatment ends and may lead to functional decline and falls This study compared objective and self-report measures of physical function, gait patterns, and falls between women cancer survivors with and without symptoms of CIPN to identify targets for functional rehabilitationMethodsA secondary data analysis of 512 women cancer survivors (age, 62 ± 6 years; time since diagnosis, 58 ± 41 years) categorized and compared women self-reporting symptoms of CIPN (CIPN+) with asymptomatic women (CIPN−) on the following: maximal leg strength, timed chair stand, physical function battery, gait characteristics (speed; step number, rate, and length; base of support), self-report physical function and disability, and falls in the past yearResultsAfter an average of 6 years after treatment, 47% of women still reported symptoms of CIPN CIPN+ had significantly worse self-report and objectively measured function than did CIPN−, with the except

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Nathan F. Dieckmann

Papers

How numeracy influences risk comprehension and medical decision making.

Less is more in presenting quality information to consumers.

Numeracy Skill And The Communication, Comprehension, And Use Of Risk-Benefit Information

Development and Testing of an Abbreviated Numeracy Scale: A Rasch Analysis Approach

Falls, Functioning, and Disability Among Women With Persistent Symptoms of Chemotherapy-Induced Peripheral Neuropathy