Free Stats Books & Exercises. History Of Statistics (Good stuff, really) Levels and Types of Data. Identify Varibles Tutorials & Practice. APA Formatting of Results. Normal Curve (Gaussian) Choosing Statistical Tests. P-values. Evidence Based Arguments (Examples) Interpret z-scores & probabilities. ANOVA & t-tests.
Factorials. Correlation & Regression.
How Big? Effect Size & Power. Mathematical Reasoning. Stats & Science Videos. Algebra. Software. Zuckerberg-Backed Data Trove Exposes the Injustices of Criminal Justice. Amy Bach was researching her book about the US court system when she met a woman named Sharon in Quitman County, Mississippi.
One July day in 2001, Sharon said, her boyfriend took her under a bridge and beat her senseless with a tire iron. Sharon passed out numerous times before her niece intervened and stopped the man from killing her. In photos from the emergency room after the attack, Sharon’s brown, almond-shaped eyes are swollen shut. She reported the crime to the police, who wrote up an aggravated assault report. And then nothing happened. What’s the Link Between Economics and Crime in America’s Most Violent Cities? A city’s high violent crime rate can result from any number of societal factors, and attempts at pinpointing can quickly turn into a tricky — if not specious — exercise.
While it’s easy enough to find correlations, proving causation becomes a far greater challenge: just because two variables occur simultaneously does not mean one was the cause of the other. For instance, even though most violent cities also have higher-than-average unemployment rates, not all all cities with high unemployment rates are violent. And while some perennially high-crime cities clearly suffer from a shortage of police officers, many relatively safe cities also have a low rate of officers per population. Having said that though, it’s shortsighted to ignore the basic economic realities affecting residents of cities with particularly high rates of violent crime.
In a recent post, we listed America’s 10 most dangerous cities, based on 2012 violent crime rates (as reported by the FBI). View data set. You Can’t Trust What You Read About Nutrition. Photographs by Anna Maria Barry-Jester As the new year begins, millions of people are vowing to shape up their eating habits.
This usually involves dividing foods into moralistic categories: good/bad, healthy/unhealthy, nutritious/indulgent, slimming/fattening — but which foods belong where depends on whom you ask. The U.S. Dietary Guidelines Advisory Committee recently released its latest guidelines, which define a healthy diet as one that emphasizes vegetables, fruits, whole grains, low- or nonfat dairy products, seafood, legumes and nuts while reducing red and processed meat, refined grains, and sugary foods and beverages. The guidelines stirred immediate controversy. Some cardiologists recommend a Mediterranean diet rich in olive oil, the American Diabetes Association gives the nod to both low-carbohydrate and low-fat diets, and the Physicians Committee for Responsible Medicine promotes a vegetarian diet. Five reasons blog posts are of higher scientific quality than journal articles. The Dutch toilet cleaner ‘WC-EEND’ (literally: 'Toilet Duck') aired a famous commercial in 1989 that had the slogan ‘We from WC-EEND advise… WC-EEND’.
It is now a common saying in The Netherlands whenever someone gives an opinion that is clearly aligned with their self-interest. In this blog, I will examine the hypothesis that blogs are, on average, of higher quality than journal articles. Calling Bullshit — Syllabus. Data Can Lie–Here’s A Guide To Calling Out B.S. According to the University of Washington professors Carl T.
How Iceland Got Teens to Say No to Drugs - The Atlantic. It’s a little before 3 p.m. on a sunny Friday afternoon and Laugardalur Park, near central Reykjavik, looks practically deserted.
There’s an occasional adult with a stroller, but the park’s surrounded by apartment blocks and houses, and school’s out—so where are all the kids? Walking with me are Gudberg Jónsson, a local psychologist, and Harvey Milkman, an American psychology professor who teaches for part of the year at Reykjavik University. Writing Quality. The Largest Vocabulary in Hip Hop. Means (All Steps) » Biostatistics » College of Public Health and Health Professions » University of Florida.
NOTE: Beginning on this page, the Learn By Doing and Did I Get This activities are presented as interactive PDF files.
The interactivity may not work on mobile devices or with certain PDF viewers. Use an official ADOBE product such as ADOBE READER. If you have any issues with the Learn By Doing or Did I Get This interactive PDF files, you can view all of the questions and answers presented on this page in this document: New paper: “Why most of psychology is statistically unfalsifiable” – Medium. Daniël Lakens and I have been working on a new paper that serves as a comment on the Reproducibility Project: Psychology and Patil, Peng, and Leek’s (2016) use of prediction intervals to analyze the results.
Our point of view on the RP:P echoes Etz and Vandekerckhove (2016): the neither the original studies nor the replications were, on the whole, particularly informative. Confessions of a Converted Lecturer: Eric Mazur.
The Increasing Problem With the Misinformed (by @baekdal) #analysis. Calculus III. Calculus III (Notes)[Notes][Practice Problems][Assignment Problems] Calculus III - Notes Calculus III (Math 3435)
UsableStats: Statistics Tutorials. Causality models, reasoning, and inference[Judea Pearl] From the American Academy of Pediatrics. Comparison of two rates. Description A rate is a ratio between a count and another measurement, for example the ratio of a number of events observed and the total number of person-years of observation.
This procedure allows to compare the rates in two groups. Comparing Crude Rates or Ratios Part II Independent Rates. Primer12 2. Comparing Percents. Download the Free Version Percents Menu Percents are understood by nearly everyone, and therefore, they are the most popular statistics cited in research. Researchers are often interested in comparing two percentages to determine whether there is a significant difference between them. Hypothesis Test: Difference in Proportions. This lesson explains how to conduct a hypothesis test to determine whether the difference between two proportions is significant. The test procedure, called the two-proportion z-test, is appropriate when the following conditions are met: The sampling method for each population is simple random sampling. The samples are independent. Each sample includes at least 10 successes and 10 failures. Each population is at least 20 times as big as its sample. Howtocritiqueajournalarticle.
The Disability Studies Reader - Lennard J. Davis - Google Books. God%20and%20Statistics. Maps & Visualizations gallery. Biology statistics made simple using Excel. Antidepressants plus blood thinners cause brain cancer cells to eat themselves in mice. Scientists have been exploring the connection between tricyclic antidepressants and brain cancer since the early 2000s. There's some evidence that the drugs can lower one's risk for developing aggressive glioblastomas, but when given to patients after diagnosis in a small clinical trial, the antidepressants showed no effect as a treatment. In a study appearing in Cancer Cell on September 24, Swiss researchers find that antidepressants work against brain cancer by excessively increasing tumor autophagy (a process that causes the Cancer Cells to eat themselves).
The scientists next combined the antidepressants with blood thinners—also known to increase autophagy—as a treatment for mice with the first stages of human glioblastoma. Mouse lifespan doubled with the drug combination therapy, while either drug alone had no effect. Infographic: See The Daily Routines Of The World's Most Famous Creative People.
Nick's Teaching Website. Confabulation. Neil Gaiman. Microsoft Word - 05-12-16 Public workplace report FINAL.doc - WorkplaceIntervention.pdf. Award Search: Award#1362899 - Advanced Manufacturing Project-Learning in Focused Innovation (AMPLiFI) Award Abstract #1362899 Advanced Manufacturing Project-Learning in Focused Innovation (AMPLiFI) This project is creating a flexible technician education framework that draws on the experience of the National Network Manufacturing Institutes (NNMIs) to prepare the workforce for the advanced manufacturing technical occupations of the future. The framework is being developed and piloted for curricular materials focused on Additive Manufacturing (AM) in a manner that is broadly applicable to technician education programs in other technical areas to be determined under the NNMI program.
In addition the framework and associated knowledge, skills and competencies are being built around broadly accepted national and international standards (e.g. DUE - Funding - Widening Implementation & Demonstration of Evidence Based Reforms. Microsoft PowerPoint - NSF proposal writing.ppt - insideview NSF.pdf.