Psychological Reasoning Assess the following argument in terms of strength/cogen

Question

Psychological Reasoning

Assess the following argument in terms of strength/cogency or valididity/soundness: "The ebb and flow of the tides has been occuring every day for millions of years. But nothing lasts forever. So, probably the motion of the tides will die out within a few years."

A. Valid, sound, B. Strong, cogent, C. Weak, not cogent, D. valid unsound, E. Invalid, Unsound, F. Strong, not cogent

Assess the following argument in terms of strength/cogency or valididity/soundness: "Constructing the great pyramid at Giza required lifting massive stne blocks to great heights. Therefore, probably the ancient Egyptians had some antigravity device to accomplish this feat."

A. Valid, sound, B. Strong, cogent, C. Weak, not cogent, D. valid unsound, E. Invalid, Unsound, F. Strong, not cogent

Explanation / Answer

Validity and soundness are used for deductive arguements. Strength and cogency are used for inductive arguements.

''The ebb and flow of the tides has been occuring every day for millions of years. But nothing lasts forever. So, probably the motion of the tides will die out within a few years." This is a deductive arguement. This statement is valid and unsound (option D).

"Constructing the great pyramid at Giza required lifting massive stone blocks to great heights. Therefore, probably the ancient Egyptians had some antigravity device to accomplish this feat." This is an inductive arguement. This statement is strong and notcogent (option F).

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