Think Again III: How to Reason Inductively (Coursera)

Offered by Duke University,
Think Again III: How to Reason Inductively (Coursera)

Want to solve a murder mystery? What caused your computer to fail? Who can you trust in your everyday life? In this course, you will learn how to analyze and assess five common forms of inductive arguments: generalizations from samples, applications of generalizations, inference to the best explanation, arguments from analogy, and causal reasoning. The course closes by showing how you can use probability to help make decisions of all sorts.

Class Deals by MOOC List - Click here and see Coursera's Active Discounts, Deals, and Promo Codes.

Suggested Readings:
Students who want more detailed explanations or additional exercises or who want to explore these topics in more depth should consult Understanding Arguments: An Introduction to Informal Logic, Ninth Edition, Concise, Chapters 8-12, by Walter Sinnott-Armstrong and Robert Fogelin.
Course Format:
Each week will be divided into multiple video segments that can be viewed separately or in groups. There will be short ungraded quizzes after each segment (to check comprehension) and a longer graded quiz at the end of the course.
Course 3 of 4 in the Introduction to Logic and Critical Thinking Specialization

Syllabus

WEEK 1
Welcome to the Course
Welcome to Think Again: How to Reason Inductively! This course is the third in the specialization Introduction to Logic and Critical Thinking, based on our original Coursera course titled Think Again: How to Reason and Argue. We are excited that you are taking this course, and we hope that you will take all four courses in the series, because there is a great deal of important material to learn. In the series as a whole, you learn how to analyze and evaluate arguments and how to avoid common mistakes in reasoning. These important skills will be useful to you in deciding what to believe and what to do in all areas of your life. The first part of this course introduces the series and the course. It also clarifies some peculiarities you may find with this course. We encourage you to watch the "Introduction to the Specialization" video first as it will help you learn more from the materials that come later.
Inductive Arguments CONTENT: This week begins by distinguishing inductive arguments from deductive arguments. Then we discuss four common forms of inductive argument: generalizations from samples (such as in political polls), applications of generalizations to particular cases (such as in predicting weather on a certain day), inferences to the best explanation (such as in using evidence to determine who committed a crime), and arguments from analogy (such as in identifying the use of one archaeological artifact by comparing it to other artifacts). We will expose the most common mistakes in these kinds of reasoning. Some of the "lectures" this week are a bit experimental (and perhaps weird!), as you will see. We hope that you enjoy them. LEARNING OUTCOMES: By the end of this week's material you will be able to do: distinguish inductive from deductive arguments; classify inductive arguments into five kinds; identify and evaluate arguments that generalize from samples; identify and evaluate arguments that apply generalizations to cases; identify and evaluate inferences to the best explanation by applying standards that good explanations must meet; identify and evaluate arguments from analogy. OPTIONAL READING: If you want more examples or more detailed discussions of these kinds of inductive arguments, we recommend Understanding Arguments, Ninth Edition, Chapters 8 and 9.

WEEK 2
Causal Reasoning
CONTENT: This module will focus on how to decide what causes what. Students will learn how to distinguish necessary conditions from sufficient conditions and how to use data to test hypotheses about what is and what is not a necessary condition or a sufficient condition. Then we will distinguish causation from correlation (or concomitant variation) and explain the fallacy of post hoc ergo propter hoc. It is sad that some diners had to die to make this lesson possible, as you will see. LEARNING OUTCOMES: By the end of this week’s material you will be able to do: analyze causal reasoning; distinguish necessary from sufficient conditions; determine what is necessary or sufficient for what; separate causation from correlation OPTIONAL READING: If you want more examples or more detailed discussions of these topics, we recommend Understanding Arguments, Ninth Edition, Chapter 10.

WEEK 3
Chance and Choice
CONTENT: This week will cover chance and choice—in other words, probability and decision making. Probability is useful for measuring the strength of inductive arguments and also for deciding what to believe and what to do. You will learn about the nature and kinds of probability along with four simple rules for calculating probabilities. An optional honors lecture will then explain Bayes’ theorem and the common mistake of overlooking the base rate. Next we will use probabilities to evaluate decisions by figuring their expected financial value and contrasting financial value with overall value. LEARNING OUTCOMES: By the end of this week’s material, you will be able to do: solve some classic paradoxes of probability; apply simple rules of probability; use Bayes’ theorem to calculate conditional probabilities; avoid fallacies of probability; apply probabilities to calculate expected financial values; distinguish financial value from overall value; use simple rules to aid decisions under uncertainty. OPTIONAL READING: If you want more examples or more detailed discussions of these topics, we recommend Understanding Arguments, Ninth Edition, Chapters 11 and 12

WEEK 4
Catch-Up and Final Quiz
This week gives you time to catch up and review, because we realize that the previous weeks include a great deal of challenging material. It will also be provide enough time to take the final quiz as often as you want, with different questions each time.
We explain the answers in each exam so that you can learn more and do better when you try the exam again. You may take the quiz as many times as you want in order to learn more and do better, with different questions each time. You will be able to retake the quiz three times every eight hours. You might not need to take more than one version of the exam if you do well enough on your first try. That is up to you. However many versions you take, we hope that all of the exams will provide additional learning experiences.

Go to Class
MOOC List is learner-supported. When you buy through links on our site, we may earn an affiliate commission.

Related Courses

Preparing for and Passing Technical Certifications (Coursera) Coursera
ROI Training

Preparing for and Passing Technical Certifications (Coursera)

Technology provides you with great opportunities for professional advancement, and technical certifications prove your knowledge, expertise, and hands-on experience to prospective employers or clients. It is extremely important to organizations like AWS, Google, Microsoft, Oracle, ITIL, PMI, and many others that their certifications prove technical expertise; otherwise, their certifications are of no value. That is why the exams are so hard. This course is intended to help you formulate an effective learning plan that will build the knowledge you need, not only to pass the exam but to be truly competent in the technology you are being tested on.

Nov 9th 2026
1 Week
Fundamentals of Engineering Exam Review (Coursera) Coursera
Georgia Institute of Technology

Fundamentals of Engineering Exam Review (Coursera)

The purpose of this course is to review the material covered in the Fundamentals of Engineering (FE) exam to enable the student to pass it. It will be presented in modules corresponding to the FE topics, particularly those in Civil and Mechanical Engineering. Each module will review main concepts, illustrate them with examples, and provide extensive practice problems.

Nov 2nd 2026
5-12 Weeks
Constructores de Paz (Coursera) Coursera
Universidad de los Andes

Constructores de Paz (Coursera)

El curso Constructores Paz surgió como resultado de la preocupación de algunos profesores de la Universidad de los Andes por hacer un aporte al proceso de construcción de paz en nuestro país y en el mundo, a partir de prácticas personales y cotidianas. En este curso tendrás la oportunidad de reflexionar permanentemente acerca de ti mismo, de tus actitudes y de tus comportamientos, y de cómo tu manera de abordar diferentes situaciones de la vida diaria te llevan a construir paz.

Nov 2nd 2026
5-12 Weeks
Mapas conceituais para aprender e colaborar (Coursera) Coursera
Universidade de São Paulo, Brasil

Mapas conceituais para aprender e colaborar (Coursera)

Você aprenderá a fazer bons mapas conceituais, ou seja, mapas que representam com fidelidade o seu entendimento sobre o tema mapeado - revelando o que você sabe e o que você não sabe! Além disso, você vai aprender a: avaliar um mapa conceitual, considerando a forma da sua rede e o conteúdo que ele apresenta, e usar mapas conceituais para facilitar a comunicação durante processos colaborativos.

Nov 2nd 2026
5-12 Weeks
Mindshift: Break Through Obstacles to Learning and Discover Your Hidden Potential (Coursera) Coursera
McMaster University

Mindshift: Break Through Obstacles to Learning and Discover Your Hidden Potential (Coursera)

Mindshift is designed to help boost your career and life in today’s fast-paced learning environment. Whatever your age or stage, Mindshift teaches you essentials such as how to get the most out of online learning and MOOCs, how to seek out and work with mentors, the secrets to avoiding career ruts (and catastrophes) and general ruts in life, and insights such as the value of selective ignorance over general competence.

Nov 9th 2026
4 Weeks
Exploration et production de données pour les entreprises (Coursera) Coursera
University of Illinois at Urbana-Champaign

Exploration et production de données pour les entreprises (Coursera)

Ce cours fournit un cadre analytique afin de vous aider à évaluer les problèmes clés de manière structurée. Il vous procurera également des outils afin de mieux gérer les incertitudes qui envahissent et compliquent les processus des entreprises. Plus précisément, vous serez initié(e) aux statistiques et à la manière de résumer les données. Vous découvrirez les concepts de fréquence, de loi normale, d’études statistiques, de l’échantillonnage et des intervalles de confiance.

Nov 9th 2026
4 Weeks
International Travel Preparation, Safety, & Wellness (Coursera) Coursera
Johns Hopkins University

International Travel Preparation, Safety, & Wellness (Coursera)

Whether you've traveled before or not, living and working overseas can be challenging. Learn how best to prepare and make the most of your time internationally. This course will prepare you to work and live overseas. It explores the epidemiology of common morbidity and mortality among travelers and examines key prevention, safety, and travel medicine principles and services to contextualize risks and maintain wellness.

Nov 9th 2026
4 Weeks
Practical Time Series Analysis (Coursera) Coursera
The State University of New York

Practical Time Series Analysis (Coursera)

Many of us are "accidental" data analysts. We trained in the sciences, business, or engineering and then found ourselves confronted with data for which we have no formal analytic training. This course is designed for people with some technical competencies who would like more than a "cookbook" approach, but who still need to concentrate on the routine sorts of presentation and analysis that deepen the understanding of our professional topics.

Nov 2nd 2026
5-12 Weeks
Science of Training Young Athletes Part 2 (Coursera) Coursera
University of Florida

Science of Training Young Athletes Part 2 (Coursera)

In this course you will learn how to design the type of training that takes advantage of the plastic nature of the athlete’s body so you mold the right phenotype for a sport. We explore ways the muscular system can be designed to generate higher force and power and the type of training needed to mold the athlete's physical capacity so it meets the energy and biochemical demands of the sport.

Nov 2nd 2026
5-12 Weeks