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Statistical Analysis Methodology

Journal Article
The Geographic Distribution, Ownership, Prices, and Scope of Practice at Retail Clinics
Cross-sectional descriptive study describes characteristics of retail clinics, including their location, scope of practice, prices, acceptance of insurance, and ownership, and to estimate the proportion of the U.S. population that lives within a short driving distance of such a clinic.
Jan 1, 2009
Journal Article
Surveying a Nationally Representative Internet-Based Panel to Obtain Timely Estimates of Influenza Vaccination Rates
The authors studied the feasibility of using an internet-based panel survey to obtain timely and accurate population-based data on influenza vaccination.
Jan 1, 2009
Journal Article
The Benefits of Risk Factor Prevention in Americans Aged 51 Years and Older
The authors assessed the potential health and economic benefits of reducing common risk factors in older Americans.
Jan 1, 2009
Journal Article
Patient Activation Status as a Predictor of Patient Experience Among Medicare Beneficiaries
Determines whether Patient activation status (PAS) is predictive of Medicare beneficiary health care experiences with health providers and insurance plans after case-mix adjustment.
Jan 1, 2009
Journal Article
Outpatient Satisfaction: The Role of Nominal Versus Perceived Communication
Examine the simultaneous associations of parent and coder assessments of communication events with parent satisfaction.
Jan 1, 2009
Journal Article
Empirical Models of Discrete Choice and Belief Updating in Observational Learning Experiments
Contrary to previous conclusions, the authors find that respondents do not tend to overweight private information when updating beliefs.
Jan 1, 2009
Journal Article
Seven Years Later: Developmental Transitions and Delinquent Behavior for Male Adolescents Who Received Long-Term Substance Treatment
Few studies have applied the life course perspective to the study of drug use, a noticeable omission in the field.
Jan 1, 2009
Journal Article
The Geographic Accessibility of Retail Clinics for Underserved Populations
The extent to which retail clinics provide access to care for underserved populations remains largely unknown. The purpose of this study was to determine whether retail clinics tend to be located in census tracts with higher medical need.
Jan 1, 2009
Journal Article
Missing Data: What a Little Can Do, and What Researchers Can Do in Response
Recent advances such as imputation and associated statistical computing strategies provide statisticians and allied researchers with sophisticated techniques for addressing missing data.
Jan 1, 2009
Journal Article
Effects of Categorizing Continuous Variables in Decision-Analytic Models
Assesses the tradeoffs between model bias and complexity and/or data limitations when categorizing continuous risk factors in Markov models.
Jan 1, 2009
Journal Article
Subjective Expectations in the Context of HIV/AIDS in Malawi
Evaluates the feasibility and success of a new interactive elicitation methodology for collecting probabilistic expectations in a developing country context with low levels of literacy and numeracy,
Jan 1, 2009
Journal Article
An Application of the Principal Stratification to Control for Institutionalization at Follow-Up in Studies of Substance Abuse Treatment Programs
Participants in longitudinal studies on the effects of drug treatment and criminal justice system interventions are at high risk for institutionalization. Use of principal stratification to control for institutionalization at follow-up is evaluated.
Jan 1, 2008
Journal Article
A Cautionary Case Study of Approaches to the Treatment of Missing Data
Presents findings from a case study of different approaches to the treatment of missing data. Casewise deletion can perform less well than expected. Unsophisticated imputations, such as mean and conditional mean, performed better than expected.
Jan 1, 2008
Journal Article
Power of Tests for a Dichotomous Independent Variable Measured with Error
Examines implications for statistical power of using predicted probabilities for a dichotomous variable rather than the actual variable. Information loss from not observing actual values can be large. Direct substitution is easy and efficient.
Jan 1, 2008
Journal Article
A New Method for Estimating Race/Ethnicity and Associated Disparities Where Administrative Records Lack Self-Reported Race/Ethnicity
Compares the accuracy of a Bayesian approach to combining surname and geocoded information to estimate race/ethnicity to two indirect methods. The Bayesian Surname and Geocoding method is a substantial improvement over other methods.
Jan 1, 2008
Journal Article
Using Pooled Kappa to Summarize Interrater Agreement Across Many Items
Proposes a pooled kappa estimator that efficiently summarizes interrater agreement by domain, as evaluated over 2,176 rated items. It is more widely applicable and makes better use of scarce subjects than simply averaging item-level kappas.
Jan 1, 2008
Journal Article
A Trauma Mortality Prediction Model Based on the Anatomic Injury Scale
Develop a statistically rigorous trauma mortality prediction model based on empiric estimates of severity for each injury in the abbreviated injury scale (AIS) and compare the performance of this new model with the injury severity score (ISS).
Jan 1, 2008
Journal Article
Measuring Revisions to Subjective Expectations
Develops a metric for revisions to subjective expectations and proposes a survey design strategy that enables the estimation of the metric. As an application, analyzes how women update expectations about the effectiveness of contraception methods.
Jan 1, 2008
Journal Article
Relationship Risks in Context: A Cumulative Risk Approach to Understanding Relationship Satisfaction
Risks associated with less satisfying intimate relationships often co-occur within individuals. Relationship satisfaction was lower among those with more risks, and cumulative risk score was predictive above and beyond the individual risk factors.
Jan 1, 2008
Journal Article
A Test for Anchoring and Yea-Saying in Experimental Consumption Data
Analyzes experimental survey data, with a random split into respondents who get an open-ended question and those immediately directed to unfolding brackets. Once yea-saying is taken into account, no evidence of anchoring at the entry point is found.
Jan 1, 2008

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RAND Topic:
Statistical Analysis Methodology

Topic Synonyms:
Statistical Modeling