Statistical models | Independence (probability theory)
In statistics, a mediation model seeks to identify and explain the mechanism or process that underlies an observed relationship between an independent variable and a dependent variable via the inclusion of a third hypothetical variable, known as a mediator variable (also a mediating variable, intermediary variable, or intervening variable). Rather than a direct causal relationship between the independent variable and the dependent variable, a mediation model proposes that the independent variable influences the mediator variable, which in turn influences the dependent variable. Thus, the mediator variable serves to clarify the nature of the relationship between the independent and dependent variables. Mediation analyses are employed to understand a known relationship by exploring the underlying mechanism or process by which one variable influences another variable through a mediator variable. In particular, mediation analysis can contribute to better understanding the relationship between an independent variable and a dependent variable when these variables do not have an obvious direct connection. (Wikipedia).
Statistics 5_1 Confidence Intervals
In this lecture explain the meaning of a confidence interval and look at the equation to calculate it.
From playlist Medical Statistics
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From playlist Statistics Playlist 1
Statistics Lecture 7.2 Part 2: Finding Confidence Intervals for the Population Proportion
From playlist Statistics Playlist 1
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From playlist Statistics Playlist 1
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From playlist Statistics Playlist 1
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From playlist Statistics Playlist 1
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From playlist Statistics Playlist 1
Statistics Lecture 7.2: Finding Confidence Intervals for the Population Proportion
https://www.patreon.com/ProfessorLeonard Statistics Lecture 7.2: Finding Confidence Intervals for the Population Proportion
From playlist Statistics (Full Length Videos)
JASP/Excel - Mediation Analyses Example
Lecturer: Dr. Erin M. Buchanan Missouri State University Spring 2017 This video covers how to: 1) Power analyses for mediation in G*Power 2) Run data screening in Excel and JASP for regression 3) Baron and Kenny steps for mediation 4) APA style reports Lecture materials and assignment a
From playlist Learn and Use G*Power
SPSS - Mediation Analysis with PROCESS
Lecturer: Dr. Erin M. Buchanan Missouri State University Spring 2015 Mediation analysis video covering model 4 in the process plug in (Hayes, 2013). Lecture materials and assignments available at statisticsofdoom.com. https://statisticsofdoom.com/page/advanced-statistics/
From playlist PSY 527/627 (SPSS) Advanced Statistics with Dr. B
R - Mediation Analyses with the multilevel package
Lecturer: Dr. Erin M. Buchanan Missouri State University Spring 2018 This video replaces a previous live in-class video. You will learn how to do mediation analyses in regression. First, we start with power in G*Power, work through data screening, and then analyze the stages of mediation
From playlist Learn and Use G*Power
R - Moderated Mediation with Bootstrapping
Lecturer: Dr. Erin M. Buchanan Missouri State University Summer 2017 This video shows you how to perform a moderation mediation analysis with bootstrapping, which is similar to similar to Model 5 as part of the Process plug in for SPSS. A comparison is provided in the video. You should w
From playlist Advanced Statistics Videos
SPSS - Double Mediation using PROCESS (Model 6)
Lecturer: Dr. Erin M. Buchanan Missouri State University Summer 2016 Lecture materials and assignments available at statisticsofdoom.com. https://statisticsofdoom.com/page/advanced-statistics/ I forgot about power! If you wanted to use GPower you could use: F test - linear multiple regr
From playlist Advanced Statistics Videos
How do I... DO A MEDIATION REGRESSION in Jamovi? (2022)
Does Jamovi allow testing a third variable, in what is called mediation? Not in the base version, but if you download the Medmod package in the program, you can get the needed functionality to test a single mediator — how do we do that? I have the answers and more in this next episode of
From playlist Jamovi 2022 Tutorials
How do I... DO A MODERATION REGRESSION in Jamovi? (2022)
Does Jamovi allow testing a third variable, in what is called moderation? Not in the base version, but if you download the Medmod package in the program, you can get the needed functionality to test a single mediator — how do we do that? I have the answers and more in this next episode of
From playlist Jamovi 2022 Tutorials
R - Mediation with Bootstrapping Lecture + Example
Lecturer: Dr. Erin M. Buchanan Missouri State University Fall 2017 This is a live lecture covering mediation analyses, understanding the regression stages, the Sobel test, and bootstrapped confidence intervals for the indirect effect. Because this is a live lecture, and I move around a
From playlist PSY 745 (R) Graduate Statistics with Dr. B
SPSS - Serial Mediation with PROCESS and Covariates (Model 6)
Lecturer: Dr. Erin M. Buchanan Missouri State University Summer 2018 You will learn how to use the new version of the PROCESS version 3 plug in for SPSS by A Hayes. In this video, you will learn how to run a serial mediation model with covariates, as well as data screening and power for
From playlist Mediation and Moderation
The dispersion of data by means of the standard deviation.
From playlist Medical Statistics