In this presentation, I cover how to use Stata for survey data analysis assuming a fixed population. We will begin by reviewing the sampling methods used to collect survey data, and how they affect the estimation of totals, ratios, and regression coefficients. We will then cover the three...

Participation in scholarly activities is a requirement in Emergency Medicine (EM) Residency Curriculum. A research project is a necessity for graduation for EM residents. To fulfill this requirement, EM residents have a mandatory research rotation. During this rotation, residents learn basic...

This presentation focuses on the author’s 8 years of experience teaching Stata to international audiences—primarily at the Essex Summer School in Social Science Data Analysis and Collection in the United Kingdom, but also in the World Bank funded statistical capacity-building initiatives in...

Most Statistics Canada data are based on surveys with complex survey designs. To allow users to account for the survey design in their analyses, Statistics Canada generally provides both a probability weight and a set of survey bootstrap weights in the survey data files. This presentation will...

Medical randomized trials testing treatments are a complex technology and they require regular attention to assure data quality prior to definitive analysis. Typically, only simple non-graphical methods (tables, proportions) help monitor trial progress, except one graph of cumulative accrual...

International experiences with students (high school, medical) and clinical investigators (courses, trials' meetings) demonstrate that Stata is highly visual, intuitive, and relatively straightforward. Stata helps the teacher communicate efficiently and effectively about methods and concepts...

Open-ended questions can be a nightmare for statistical processing. Any mistake in spelling can result in a mismatch during merging, or multiple counting of the same object. For example, the answers to the "place-of-birth" question might be "Chicago" and "San Francisco", but in practice they are...

Research at Canadian Social Trends within Statistics Canada, Canada's premiere Statistical agency, often involves the creation and analysis of numerous descriptive tables. These tables provide convenient and easy-to-understand information for the general public, one of our many clients. Analysis...

This presentation updates Nichols and Schaffer's 2007 UKSUG talk on clustered standard errors. Although cluster-robust standard errors are now recognized as essential in a panel data context, official Stata only supports clusters that are nested within panels. This rules out the possibility of...

Circular statistics are needed when one or more variables have outcome space in the circle, which is for example true for data measured with reference to compass, clock, or calendar. Applications abound in the earth and environmental sciences, not to mention economic and medical fields well...