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Maria Orlando

Researcher at RAND Corporation

Publications -  43
Citations -  5405

Maria Orlando is an academic researcher from RAND Corporation. The author has contributed to research in topics: Poison control & Population. The author has an hindex of 31, co-authored 43 publications receiving 5106 citations. Previous affiliations of Maria Orlando include Charles R. Drew University of Medicine and Science.

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Likelihood-Based Item-Fit Indices for Dichotomous Item Response Theory Models.

TL;DR: In this article, Pearson's X2 and likelihood ratio G2 (S-G2) were used for dichotomous item response theory (IRT) models to compare the modeled and observed frequencies for correct and incorrect responses for each number-correct score.
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The prevalence of alcohol consumption and heavy drinking among people with HIV in the United States: results from the HIV Cost and Services Utilization Study.

TL;DR: In this article, the authors used data from the HIV Cost and Services Utilization Study (HCSUS), a national probability survey of HIV-infected adults receiving medical care in the U.S. in early 1996 (N = 2,864: 2,017 men, 847 women), to estimate the prevalence of any alcohol consumption and heavy drinking.
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Further investigation of the performance of S - X2: An item fit index for use with dichotomous item response theory models

TL;DR: Results from this study imply that S - X 2 may be a useful tool in detecting the misfit of one item contained in an otherwise well-fitted test, lending additional support to the utility of the index for use with dichotomous item response theory models.
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Substance use Trajectories from Early Adolescence to Emerging Adulthood: A Comparison of Smoking, Binge Drinking, and Marijuana use:

TL;DR: In this article, the authors synthesize their prior findings on patterns of smoking, binge drinking, and marijuana use from early adolescence (age 13) to emerging adulthood (age 23) and present new data on how these trajectory classes compare on key psychosocial and behavioral outcomes during emerging adulthood.