Amy F. Italiano
PHL/458
Thursday, 5 March 2015
Laura L. Calo
Evaluating Truth and Validity Exercise
Scenario 1: 12.2.j
Power must be evil because it can corrupt people
Evaluation of the Argument:
Step 1: All things that corrupt people are evil. Power corrupts people. Therefore, power must be evil.
Step 2: Errors affecting truth
Either/or thinking-no; Avoiding the issue-no; Overgeneralizing-yes; Oversimplifying-no; Double standard-no; Shifting the blame-no; Shifting the burden of proof-no; Irrational appeal-no
Step 3: Conclusion is illegitimate. To fix this conclusion and make it legitimate I could restate the argument as: All things that corrupt people are evil. Power corrupts people. Therefore, power must be evil.
Step 4: the error of overgeneralizing was found. To fix this error I could change the argument to read: Certain types of power must be evil because it can corrupt some people
Explanation of the assessment:
Overgeneralizing the concept of all power by all people makes this an error in truth. To correct the error I restated the argument by saying that certain types of power not just power, corrupts some people not all people. The original argument had an illegitimate conclusion but by restructuring the sentence as such: All things that corrupt people are evil. Power corrupts people. Therefore, power must be evil, the conclusion is now legitimate.
Addition of Argumentation: None needed
Scenario 2: 12.2.f No one who ever attended this college achieved distinction after graduation. Marvin attends this college. Therefore, Marvin will not achieve distinction after graduation.
Evaluation of the Argument:
Step 1: Marvin attends this college and will not achieve distinction after graduation because no one who ever attended this college achieved distinction after graduation.
Step 2: Errors affecting truth
Either/or thinking-no; Avoiding the issue-no; Overgeneralizing-no; Oversimplifying-no;
References: Ruggiero, V. R. (2009). The Art of Thinking: A guide to critical and creative thought (9th ed). New York, NY: Person Longman.