Causal inference | Validity (statistics)
External validity is the validity of applying the conclusions of a scientific study outside the context of that study. In other words, it is the extent to which the results of a study can be generalized to and across other situations, people, stimuli, and times. In contrast, internal validity is the validity of conclusions drawn within the context of a particular study. Because general conclusions are almost always a goal in research, external validity is an important property of any study. Mathematical analysis of external validity concerns a determination of whether generalization across heterogeneous populations is feasible, and devising statistical and computational methods that produce valid generalizations. (Wikipedia).
Reliability 1: External reliability and rater reliability and agreement
In this video, I discuss external reliability, inter- and intra-rater reliability, and rater agreement.
From playlist Reliability analysis
Can You Validate These Emails?
Email Validation is a procedure that verifies if an email address is deliverable and valid. Can you validate these emails?
From playlist Fun
From playlist Courses and Series
Validity, reliability and accuracy explained
What doe validity, reliability and accuracy mean in experiments? Watch and find out. Support me on Patreon - https://www.patreon.com/HighSchoolPhysicsExplained Find me on facebook - www.facebook.com/HighSchoolPhysicsExplained credit Pendulum animation - PhET Interactive Simulations Unive
From playlist general
History of test validity research
History of test validity research Task-based vs competency-based assessment: https://www.youtube.com/watch?v=LCEfIyxoClQ&list=PLTjlULGD9bNJi1NtMfKjr7umeKdQR9DGO&index=18 Test usefulness: https://www.youtube.com/watch?v=jZFeOaYkVzA&list=PLTjlULGD9bNJi1NtMfKjr7umeKdQR9DGO&index=7
From playlist Learn with Experts
Implications & Contrapositives (1 of 2: How do they relate?)
More resources available at www.misterwootube.com
From playlist The Nature of Proof
The Contrapositive and Proof by Contrapositive
The contrapositive is a powerful tool that can be used to prove various mathematical statements. It is most useful when a direct proof is awkward or impossible, and - if it can be used - is often a much more elegant method that employing proof by contradiction. #proof #contrapositive #proo
From playlist Proofs and Explanations
Mod-09 Lec-40 The Mimamsa Philosophy - III
Indian Philosophy by Dr. Satya Sundar Sethy, Department of Humanities and Social Sciences, IIT Madras. For more details on NPTEL visit http://nptel.iitm.ac.in
From playlist IIT Madras: Introduction to Indian Philosophy | CosmoLearning.org Philosophy
Equivalence relations -- Proofs
This lecture is on Introduction to Higher Mathematics (Proofs). For more see http://calculus123.com.
From playlist Proofs
Mod-09 Lec-39 The Mimamsa Philosophy - II
Indian Philosophy by Dr. Satya Sundar Sethy, Department of Humanities and Social Sciences, IIT Madras. For more details on NPTEL visit http://nptel.iitm.ac.in
From playlist IIT Madras: Introduction to Indian Philosophy | CosmoLearning.org Philosophy
Mod-05 Lec-17 The Nyaya Philosophy - III
Indian Philosophy by Dr. Satya Sundar Sethy, Department of Humanities and Social Sciences, IIT Madras. For more details on NPTEL visit http://nptel.iitm.ac.in
From playlist IIT Madras: Introduction to Indian Philosophy | CosmoLearning.org Philosophy
Mod-05 Lec-19 The Nyaya Philosophy - V
Indian Philosophy by Dr. Satya Sundar Sethy, Department of Humanities and Social Sciences, IIT Madras. For more details on NPTEL visit http://nptel.iitm.ac.in
From playlist IIT Madras: Introduction to Indian Philosophy | CosmoLearning.org Philosophy
Case Study: Wolfram's Symbolic ERP Project
To learn more about Wolfram Technology Conference, please visit: https://www.wolfram.com/events/technology-conference/ Speaker: Daniel Bigham & Todd Reichert Wolfram developers and colleagues discussed the latest in innovative technologies for cloud computing, interactive deployment, mob
From playlist Wolfram Technology Conference 2018
Get the Code Here: http://goo.gl/QrPL9 In this part of my code refactoring tutorial, we'll look at how to replace a primitive type with a class. Type safety is very important! So, what we want to do is to eliminate all operations on values that are not of the appropriate data type by pro
From playlist Code Refactoring
SICSS 2018 - Moving Beyond Simple Experiments (Day 6. June 23, 2018)
Matthew Salganik talks about moving beyond simple experiments at the 2018 Summer Institute in Computational Social Science at Duke University. Slide and materials here: https://compsocialscience.github.io/summer-institute/2018/teaching-learning-materials
From playlist SICSS 2018 - Mass Collaboration (6/22)
Bio As a practical statistician and machine learner, Franz is interested in creating a data analytics workflow which is empirically solid, quantitative, and useful in the real world, with a focus on predictive modelling. He is working on what he considers to be two of the most pressing c
From playlist Short Talks
Introduction to Indirect Proof
This video introduces indirect proof and proves one basic algebraic and one basic geometric indirect proof. Complete Video List: http://mathispower4u.yolasite.com/
From playlist Relationships with Triangles
Psych 9A. Psych Fundamentals. Lecture 03: Research Methods
UCI Psych 9A: Psych Fundamentals (Winter 2014) Lec 03. Psych Fundamentals -- Research Methods -- View the complete course: http://ocw.uci.edu/courses/psych_9a_psychology_fundamentals.html Instructor: Thomas Michael D'Zmura, Ph.D. License: Creative Commons CC-BY-SA Terms of Use: http://ocw
From playlist Psych 9A: Psych Fundamentals