RAND researchers have pioneered several different methodologies, such as the Delphi method and robust decisionmaking, and continue to apply their methodological expertise in multidisciplinary projects that may require a range of capabilities, including modeling and simulation, survey research, economic or statistical analysis, or planning and forecasting.
Large efficiency gains and substantial reduction in omitted variable bias are demonstrated in an application to sociodemographic differences in the risk of child obesity estimated from two nationally representative cohort surveys.
Upper-extremity and mobility subdomains shared about 35% of the variance in common, and produced comparable scores whether calibrated separately or together.
Scenario discovery offers a new means to characterize and communicate the information in computer simulation models under conditions of deep uncertainty.
A new set of scenarios, referred to as Shared Socio-economic Pathways (SSPs), examines challenges to mitigation and challenges to adaptation. Developing SSPs with a "backwards" approach could help inform the development of SSPs to ensure the storylines focus on the driving forces most relevant to distinguishing between the SSPs.
Many objective robust decision making (MORDM) combines concepts and methods from many objective evolutionary optimization and robust decision making (RDM), along with extensive use of interactive visual analytics, to facilitate the management of complex environmental systems.
The Coastal Louisiana Risk Assessment model (CLARA) facilitates comparisons of current and future flood risk under a variety of protection system configurations in a wide range of environmental, operational, and economic uncertainties.
The quality of clinical care and the quality of interpersonal care should be considered separately to give an overall assessment of medical care.
The PTSD Checklist–Civilian Version (PCL-C; Weathers, Litz, Herman, Huska, & Keane, 1993) is used for the identification of posttraumatic stress disorder (PTSD).
Parental reporting of height and weight was evaluated for US children aged 2-13 years.
Ho Chi Minh City faces significant and growing flood risk. Recent risk reduction efforts may not work if climate and socio-economic conditions diverge from earlier projections. Robust decisionmaking can help Vietnam's capital develop integrated flood risk management strategies despite this uncertainty.
Using stated preference choice experiments, RAND Europe gained a better understanding of how the presence of multi-buy sales promotions affects consumers' purchasing behaviour of alcohol products, in terms of both type and amount of wine, beer, and spirits.
Evidence-based decision-making is critical to informing policy in global health interventions and programs.
We develop a dependent Dirichlet process (DDP) model for repeated measures multiple membership (MM) data.
Specfic computations can obtain logistic approximations of marginal trace lines for graded response items derived from multidimensional bifactor item response theory (IRT) models.
This RAND Europe report looks at providing timely, reliable and high-quality evidence to inform decision-making to improve women's and children's health.
There is little evidence that peer review is the best way to apportion research money — and even less evidence for the alternatives.
This article evaluates the impact of 2 types of state-level policies on the availability of competitive foods in a national sample of schools.
Research linking high-quality child care programs and children's cognitive development has contributed to the growing popularity of child care quality benchmarking efforts such as quality rating and improvement systems (QRIS).
Increases in obesity rates based on self-reported height and weight are likely to reflect actual weight increases and are not inflated by changes in reporting accuracy.
Sexual health problems affect adolescents disproportionately more than adults, and efforts to improve their sexual health and decision making have not been fully successful. However, research integrating insights from neuroscience and other areas could increase our understanding of sexual risk behaviors among youth.