Search Results for Category: Quantitative

More on Power, Sample Size, and Power Calculations

More on Power, Sample Size, and Power Calculations Of the variables that affect power, you can see that sample size gives you the most flexibility, as people are not in the habit of changing either the alpha level of .05, nor can you switch from a two-tailed to a one-tailed test (the use of a […]

Categories: MentorSpace, Quantitative, Tools and Resources

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Big Data and Social Research Roundup No. 29

This month’s big data newsletter includes several top-flight free resources for readers, including an article on “The social imaginaries of data activism” drawn from the journal Big Data & Society; a chapter from The SAGE Handbook of Social Media Research Methods that asks, “Big Data – Hype or Revolution?”; and a chapter from another of […]

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Learn from Research Cases: Youth Participation

Studying Youth, With Youth Let’s face facts: if you are old enough to conduct research, you are a geezer from the perspective of a 14-year old! Why would they reveal insights into their personal lives, especially on sensitive matters they’d rather not discuss? This is a dilemma researchers face when studying adolescents or young adults– […]

Categories: Focus Series, Participatory Methods, Photovoice, Qualitative, Quantitative, Research, Research Cases, Social Issues, Teaching, Uncategorised

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The Equivalence Test Tackles So-called Negative Results

A paleontologist returns to her lab from a summer dig and sets up a study comparing tooth length in two dinosaur species. She and her team work meticulously to avoid biasing their results. They remain blind to the species while measuring, the sample sizes are large, and the data collection and the analysis are rigorous. […]

Categories: Data Analysis, Quantitative

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Decision Tree to Examine Variable in Samples

Below is a short summary and overview of chapter seven in Dr. Kathryn A. Adams book entitled “Research Methods, Statistics and Application”. This overview highlights a decision processing tool that is useful when examining variables in a qualitative sample. First, the one-sample t test and the chi-square goodness of fit are used when you are […]

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Data in the News: California’s Wildfires

Natural disasters in California have dominated the headlines for the past year. In January, mudslides tore through Southern California caused by an earlier forest fire that left the hillsides in Montecito vulnerable to landslides. In November 2018 a wildfire in Northern California’s little town of Paradise killed at least 88 people and burned more than 150,000 acres, according to CBS news. Meanwhile, […]

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How to Construct a Stem-and-Leaf Display

“Statistical Analysis“, by Jerome Frieman, intermediate/advanced statistics text, uses real research on antisocial behaviors, such as cyber-bullying, stereotyping, prejudice, and discrimination, to help readers across the social and behavioral sciences understand the underlying theory behind statistical methods. By presenting examples and principles of statistics within the context of these timely issues, the text shows how the results of analyses can be used to answer research questions.

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Bootstrap Method Wins Efron International Prize in Statistics

The International Prize in Statistics has been awarded to Bradley Efron, professor of statistics and biomedical data science at Stanford University, in recognition of the “bootstrap,” a method he developed in 1977 for assessing the uncertainty of scientific results that has had extraordinary impact across many scientific fields. With the bootstrap (described by Efron below), […]

Categories: Opportunities, Quantitative

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Why Is It So Hard to Get an Accurate Vote Count?

In Kansas this past August, vote totals in the Republican primary for governor fluctuated by more than 100 votes over the course of a few days, and the winner – Secretary of State Kris Kobach – wasn’t declared until a week after the vote. In Virginia, a hotly contested battle last year for the commonwealth’s […]

Categories: Quantitative, Social Issues

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