Logical Fallacies in Science

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Questions and Answers

What is the main error in assuming that correlation equals causation?

Correlation is a relationship between two variables, but it does not prove that one variable causes the other.

What is the logical fallacy of using personal stories as proof of effectiveness?

It's called Confirmation Bias.

If someone ignores data that opposes their beliefs, what type of fallacy are they exhibiting?

That is confirmation bias.

What is the main error behind an ad hominem attack?

<p>Attacking the person and not the argument.</p> Signup and view all the answers

What is a flaw of using a single study to make a generalization?

<p>It's a hasty generalization.</p> Signup and view all the answers

If someone claims a climate scientist's data is invalid because they are funded by an oil company, what logical fallacy is at play?

<p>That is an ad hominem fallacy.</p> Signup and view all the answers

Why should you avoid claiming that one study, on its own, proves a broad scientific idea?

<p>It is a form of hasty generalization.</p> Signup and view all the answers

If you see a correlation, but don't investigate whether an association is directly linked, what type of fallacy are you exhibiting?

<p>You have mistaken correlation for causation.</p> Signup and view all the answers

What is a logical fallacy?

<p>An error in reasoning that undermines the validity of an argument.</p> Signup and view all the answers

Why are logical fallacies problematic in science?

<p>They can lead to misinformation, pseudoscience, or flawed scientific practices.</p> Signup and view all the answers

What is the 'strawman' fallacy?

<p>Misrepresenting an argument to make it easier to attack.</p> Signup and view all the answers

Give an example of the strawman fallacy in the context of evolution.

<p>Claiming that scientists believe humans evolved from monkeys, when they actually propose that humans and monkeys share a common ancestor.</p> Signup and view all the answers

What is the 'appeal to authority' fallacy?

<p>Assuming something is true because an authority figure says so.</p> Signup and view all the answers

Why is it a fallacy to cite a celebrity on a scientific topic?

<p>Being a public figure does not equate to expertise in health or science.</p> Signup and view all the answers

Explain the concept of 'cherry-picking' in the context of logical fallacies.

<p>Selectively presenting only the evidence that supports a position, while ignoring contradictory evidence.</p> Signup and view all the answers

How might someone use 'confirmation bias' when evaluating scientific claims?

<p>By only seeking out and accepting evidence that confirms their pre-existing beliefs.</p> Signup and view all the answers

What is the definition of 'cherry-picking' in the context of scientific evidence?

<p>Selecting only the evidence that supports a claim while ignoring contradictory data.</p> Signup and view all the answers

Explain how an appeal to emotion is a logical fallacy in scientific discussions.

<p>It manipulates emotions instead of providing evidence.</p> Signup and view all the answers

What is the primary flaw in using an 'argument from ignorance'?

<p>It shifts the burden of proof to someone else.</p> Signup and view all the answers

What is the importance of replication in confirming scientific claims?

<p>Replication helps confirm the validity and reliability of study results.</p> Signup and view all the answers

Why is it important to use overall trends rather than isolated anomalies when analyzing scientific data?

<p>Isolated anomalies can be misleading, overall trends show a more complete picture</p> Signup and view all the answers

Why should scientific claims be testable and disprovable?

<p>Claims must be falsifiable to be considered scientific.</p> Signup and view all the answers

What is the critical thinking principle that requires questioning claims and demanding evidence before accepting them?

<p>Skepticism.</p> Signup and view all the answers

What is the critical thinking principle that involves avoiding personal biases and focusing on facts when evaluating information?

<p>Objectivity.</p> Signup and view all the answers

Flashcards

Correlation vs. Causation

Mistaking a relationship between two things as a cause-and-effect relationship.

Confirmation Bias

Favoring evidence that already aligns with your beliefs while ignoring evidence that contradicts them.

Ad Hominem

Attacking the person presenting an argument rather than addressing the argument itself.

Hasty Generalization

Drawing a broad conclusion based on limited or insufficient evidence.

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Appeal to Emotion

Manipulating emotions instead of presenting evidence to support a claim.

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Cherry-Picking

Selecting only evidence that supports a claim while ignoring evidence that contradicts it.

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Argument from Ignorance

Claiming something must be true because it hasn't been proven false, or must be false because it hasn't been proven true.

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Repetition Fallacy

Repeating a claim to make it seem more believable, even without providing evidence.

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Galileo's Approach

Combining mathematical calculations with experiments to achieve precise and accurate understanding of natural phenomena.

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Scientific Method

A systematic process for gaining knowledge through observation, experimentation, and analysis, aiming to eliminate personal biases.

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Newton's Laws

Universal laws are overarching principles that explain how the physical world works, like gravity, motion, and forces.

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Logical Fallacies

Errors in reasoning that weaken the logic of an argument, making it seem persuasive but lack evidence or coherence.

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Strawman Fallacy

Misrepresenting an argument to make it easier to attack. It twists the original point and makes it easier to refute.

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Appeal to Authority

Assuming something is true because an authority figure states it, without considering any evidence or other experts.

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Appeal to Emotion (Anecdotal Evidence)

Using anecdotal or personal experiences as evidence, rather than objective data or scientific studies.

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Study Notes

The Science of Critical Thinking

  • The presentation is about critical thinking concepts, pseudoscience, and logical fallacies in a scientific context.
  • The learning objectives include tracing the historical development of the scientific method, distinguishing between science and pseudoscience, identifying and analyzing logical fallacies, and applying critical thinking to evaluate scientific claims.
  • The table of contents details topics such as the evolution of scientific thinking, pseudoscience identification, logical fallacies in science, and conclusion.
  • The presentation highlights the evolution of scientific thinking from ancient Greece to the modern era, covering the approaches of Thales, Aristotle, the medieval Islamic Golden Age and Francis Bacon, Galileo, and Newton in the modern era.

Scientific Critical Thinking

  • Scientific critical thinking involves analyzing information, evaluating arguments, and reaching reasoned judgments.
  • This process includes formulating objective synthesis and questioning the validity of studies before acceptance.

What is Critical Thinking?

  • Critical thinking is the ability to analyze, evaluate and synthesize information objectively.
  • It requires skepticism, open mindedness, and a focus on evidence.
  • It's about asking the right questions and evaluating information systematically.

Logical Fallacies in Scientific Context

  • Logical fallacies are errors in reasoning that undermine the validity of an argument.
  • They can appear persuasive but lack evidence or logical coherence.
  • Logical fallacies include strawman, appeal to authority, mistaking correlation for causation, confirmation bias, Ad Hominem, hasty generalization and appeal to emotion.
  • Examples, in science include arguments against climate change based on anecdotal or short-term weather data and anti-vaccine arguments based on emotion or anecdotal evidence.

Science vs. Pseudoscience

  • Science is characterized by falsifiability, empirical testing, peer review, and self-correction.
  • Pseudoscience typically includes resistance to testing, lack of self-correction, appeal to authority, and unfalsifiable claims.

Essential Takeaways

  • The scientific method evolved through centuries of intellectual evolution.
  • Modern scientific methods involve mathematical analysis, empirical observation and systematic experimentations.
  • Understanding the history of science helps appreciate current methodologies.
  • Logical fallacies in science weaken arguments and must be avoided to achieve valid conclusions.
  • Science requires empirical evidence, falsifiability, and logical reasoning.
  • Critical thinking in science demands skepticism, objectivity, and rigorous evaluation of evidence.

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