Видео

Section from the Association for Psychological Science's tribute to W.K. Estes where the departure of Estes from Behaviorism is discussed. Estes was B.F. Skinner's first graduate student.

This video shows how to plot simple slopes from an interaction between continuous variables using the 'conditional_effects' command from R's brms package. This is probably the quickest way I know of to plot simple slopes. Code and Data for this video: worthylaborg.files.wordpress.com/2022/04/brmsinteractionsmaterials.zip

In this video I deliver a panegyric on two of the most amazing tools for analyzing data in R, dplyer and ggplot. Dplyer can ply through a data set in a fraction of the time that it would take to analyze data in a program like Excel. Once dplyer is used to analyze the data, ggplot can be used to create some of the nicest, most customizable plots known to humanity. This series will focus on analy...

In this video I show how to create new variables or modify existing variables, as well as how to subset the data based on a conditional statement. These are functions researchers may need to use to get their data in the best format for their analyses. This series will focus on analyzing the data from Byrne et al., 2020, published in Cognition. See our website for links to the paper and the code...

In this video we show how to load data into R. This can be a major hurdle for beginners as most R examples use built-in data sets, while most data cognitive psychologists collect has to be loaded into R. This series will focus on analyzing the data from Byrne et al., 2020, published in Cognition. See our website for links to the paper and the code: worthylab.org/ Paper: worthylaborg.files.wordp...

Shows an example of running an MTurk experiment with JATOS.

Shows an example of how to program the Stroop task in Qualtrics. This link will download a folder with the HTML and Javascript Code worthylaborg.files.wordpress.com/2022/03/stroopcode-1.zip

Provides an example of logistic regression using R. The data come from passengers on the Titanic; age, sex and passenger class are used to predict surviving to sinking of the Titanic.

Uses various R packages to perform mediation (and moderation) analyses.

Discusses multilevel modeling using R.

Shows how to do regression with continuous predictors, including examples in R.

Short lecture based on John K. Kruschke's book "Doing Bayesian Data Analysis: A tutorial with R, JAGS, and Stan". Note that I refer to this book, incorrectly, by another title in the video. sites.google.com/site/doingbayesiandataanalysis/ This lecture was prepared for a graduate statistics and research methods course taught within a psychology department.

Discusses categorical predictors in regression, including the relationship between ANOVA and regression.