PPT-Deductive Validity

Truth preserving The conclusion logically follows from the premises It is logically impossible for the premises to be true and the conclusion false because the conclusion expresses what is implied by the combination of premises . In a deductive argument the premises are intended to provide support for the conclusion that is so strong that if the premises are true it would be impossible for the conclusion to be false An inductive argument is an argument in which it is thought Deductive reasoning. , also . deductive logic. or . logical deduction. or, informally, . ". top-down. " logic. , is the process of . reasoning. from one or more . statements. (premises) to reach a logically certain conclusion. It differs from . Arguments. Premise: . statement upon which an argument is based or from which a conclusion is drawn. Premise is either true or false. Arguments: . Consist of one or more premises and one conclusion or claim, which is drawn from those premises. It’s Logical. What is Logic?. Logic. – The science of correct reasoning.. Reasoning. . – The drawing of inferences or conclusions from known or assumed facts. .. There are two main types of reasoning:. Section 2.3. : . Using . deductive reasoning to verify conjectures. Chapter 2: Geometric Reasoning. I Can. Determine whether inductive of deductive reasoning is being used for a given scenario.. Apply the Law of Detachment in logical reasoning and determine if it is being used validly.. VS. . Inductive . Reasoning. Aristotle. . (Ancient Greek Philosopher). Start with a . premise. Premises lead to a . certain. conclusion. DEDUCTIVE REASONING. Sir Francis Bacon. (17. th. Century English Philosopher). Week 8, Psych 350 – R. Chris Fraley. Validity. In our last class, we began to discuss some of the ways in which we can assess the quality of our measurements.. We discussed the concept of reliability (i.e., the degree to which measurements are free of random error).. VS. . Inductive . Reasoning. Aristotle. . (Ancient Greek Philosopher). Start with a . premise. Premises lead to a . certain. conclusion. DEDUCTIVE REASONING. Sir Francis Bacon. (17. th. Century English Philosopher). Part 2. Foundations of Measurement for Human Resource Selection. CHAPTER. 5. ©2011 Cengage Learning. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.. Mimi . Opkins. CECS 100. Fall 2011. Problem Solving. Logic. – The science of correct reasoning.. Reasoning. – The drawing of inferences or conclusions from known or assumed facts.. When solving a problem, one must understand the question, gather all pertinent facts, analyze the problem i.e. compare with previous problems (note similarities and differences), perhaps use pictures or formulas to solve the problem.. David Oglesby. Partner Language Training Center Europe. What is Validity?. Merriam-Webster: (the quality of being) . well-grounded. (OE) or . justifiable. . (AF. ); at once . relevant. (ML) and . Validity/Soundness Logical . Fallicies. What is the difference between these two arguments?. I am your teacher.. Today is either a weekday or a weekend day.. Today is not a weekend day.. Today is a weekday.. Note-Taking Guide. I suggest only writing down things written in . red. Inductive vs. Deductive Reasoning. What was our definition of inductive reasoning (section 2.1)?. Process of looking for patterns, making a conjecture, and then attempting to prove the conjecture true or false. Instrumentation: Validity Measuring Caring in Nursing Validity: Defined Extent to which instrument reflects abstract construct being examined; measures what it is supposed to measure Domain or Universe of Construct