4/22: PHIL 105 - Study Notes on Causal Reasoning and Exam Preparation

Course Evaluation and Announcements

  • Course evaluation forms are available. Students are encouraged to fill them out as they are important for the instructor's job applications.

  • An announcement with a link to the evaluations will be sent to students.

Exams

  • Exams that were not collected previously are available for pickup after class.

  • Grades for participation and attendance will be inputted into Canvas. The instructor aims to complete this by the end of the day.

Causal Reasoning

  • Discussion of causal reasoning and its importance in various fields of study.

  • Core Concepts to Remember:   - Sufficient Condition: A condition that guarantees the occurrence of the event (event A is a sufficient condition for event B if A's occurrence guarantees B's occurrence).   - Necessary Condition: A condition that must be satisfied for an event to occur (event A is a necessary condition for event B if event B cannot occur without A).   - Both Necessary and Sufficient Condition: An event that can cause another event and is needed for the event to occur.   - Unrelated Events: Two events that do not influence each other’s occurrence.

Relationship Between Events

  • For any two events A and B:   - A is a sufficient condition for B.   - A is a necessary condition for B.   - A is both necessary and sufficient for B.   - A is not related to B.

  • When discussing causation in science, it relates to these conditions.

Mills' Method

  • Mills' method focuses on finding the correlation between events.

  • Introduction of different methods to determine conditions related to events.

Methods of Agreement

  • Direct Method of Agreement: Identifies necessary conditions for an event through observed presence of conditions.

  • Inverse Method of Agreement: Identifies sufficient conditions for an event through observed absence of conditions.

Double Method of Agreement

  • A combination of the direct and inverse methods.

  • Example:
      - If Condition C is necessary for Event E, then whenever E is present, C must also be present. If C is absent, E must also be absent.   - Therefore, Condition C is both necessary and sufficient for Event E.

  • Emphasizes probability in determining the nature of relationships between events.

Example Analysis

  • Consider conditions A (migraine) and B (rain).

  • Different scenarios can determine if A is a necessary or sufficient condition for B and vice versa.

Method of Differences

  • Identifies the cause of an event by recognizing what is different between scenarios.

  • Example provided relates to clinics and the occurrence of an event affecting patient outcomes.

Limitations of Causal Methods

  • Methods are most effective when the correct necessary or sufficient conditions are already understood.

  • Understanding that being run over by a steamroller is a sufficient condition for dying but not a necessary condition.

  • Emphasizes the relevance of conditions when identifying necessary versus sufficient conditions.

Inductive Logic

  • Inductive arguments do not maintain probability in the same way as deductive arguments (non-monotonicity).

  • Future evidence can affect the certainty of inductive conclusions.

Exam Overview

  • Upcoming exam: May 4 at 8 AM.

  • Format: Similar to previous exams with multiple choice and open-ended questions, including truth tables and diagramming arguments.

  • Exam will cover:   - Aristotelian logic   - Propositional logic   - Causal reasoning   - Analogical reasoning

  • Excluded content refers to fallacies.

Study Guide and Review Sessions
  • A study guide will be posted before Friday.

  • Review sessions on Friday and the following Monday are planned, with the option for extensive review if students express interest.

  • Students are encouraged to prepare questions and practice problems for these review sessions.

Problem Sets and Assignments

  • Homework related to evaluating analog arguments will be assigned, focusing on how changes affect argument strength.

  • Students can submit questions regarding problem sets and understand specific concepts discussed.