Question and answer
Explain Karl Popper's strategy of disconfirmation?
Karl Popper's philosophy of science uses modus tolens as the central method of disconfirming, or falsifying, scientific hypotheses. [ Scientists start with a current scientific theory and use the usual methods of deductive reasoning to derive specific conclusions, of which some are "predictions". Strictly deductive reasoning is "truth preserving", that is, it is such that if one starts out
with "true" premises, one can only deduce "true" conclusions. Starting with a "theory" and deducing "predictions" can be stated in the form of a premise: If the theory is true, then the prediction is true. Popper shows that we cannot prove that a theory is true, but we can certainly show that a prediction is false. If the scientist tests one of these predictions and finds out that it is not true, he uses good 'ole modus tolens to conclude that the theory cannot be true. If the theory is true, then the prediction is true. The prediction is not true. Therefore, the theory is not true. The key feature of Popper's theory exemplified by the modus tolens argument is "critical testing". In order for critical testing to give valid results, the theory to be tested must be free from any "looseness"; Popper lists four criteria, or levels of evaluating, for determining whether a proposed theory is sufficiently "tight" to be admitted as a "scientific" theory. We may if we like distinguish four different lines along which the testing of a theory could be carried out. First there is the logical comparison of the conclusions among themselves, by which the internal consistency of the system is tested. Secondly, there is the investigation of the logical form of the theory, with the object of determining whether it has the character of an empirical or scientific theory, or whether it is, for example, tautological. Thirdly, there is the comparison with other theories, chiefly with the aim of determining whether the theory would constitute a scientific advance should it survive our various tests. ]
Expert answered|vanilla2bean|Points 2611|
Asked 10/30/2012 8:00:07 AM
0 Answers/Comments
Get an answer
New answers

There are no new answers.


There are no comments.

Add an answer or comment
Log in or sign up first.
22,004,443 questions answered
Popular Conversations
Weegy: Precipitation in chemistry is the creation of a solid in a solution or inside another solid during a chemical ...
9/4/2015 7:21:31 AM| 2 Answers
Charles de Montesquieu thought the government should be divided into ...
Weegy: Charles de Montesquieu thought the government should be divided into three branches of government. What is this ...
9/4/2015 11:03:20 AM| 2 Answers
Select the correct adjective form for the following sentence. At ...
Weegy: At the end of the fourth quarter, it became clear which team was more fit.
9/4/2015 12:16:27 PM| 2 Answers
Which is a sentence fragment? A. Yesterday waves crashed against ...
Weegy: Although they sang well. This is a sentence fragment. User: Which is a complete sentence? A. When we heard ...
9/4/2015 12:21:39 PM| 2 Answers
Weegy Stuff
Points 156 [Total 9479]| Ratings 0| Comments 156| Invitations 0|Offline
Points 122 [Total 9432]| Ratings 1| Comments 112| Invitations 0|Offline
Points 93 [Total 398]| Ratings 0| Comments 93| Invitations 0|Offline
Points 49 [Total 833]| Ratings 0| Comments 49| Invitations 0|Offline
Points 39 [Total 572]| Ratings 0| Comments 39| Invitations 0|Offline
Points 33 [Total 33]| Ratings 1| Comments 13| Invitations 1|Offline
Points 24 [Total 29]| Ratings 1| Comments 4| Invitations 1|Offline
Points 20 [Total 208]| Ratings 0| Comments 20| Invitations 0|Offline
Points 11 [Total 67]| Ratings 0| Comments 11| Invitations 0|Offline
Points 10 [Total 10]| Ratings 0| Comments 0| Invitations 1|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2015 Purple Inc.