Cumulative level test: Tools for clear reasoning

Check understanding, separately from reading

10 questions · 80% to pass · no timer. This longer test revisits both units in the level. These authored questions assess recognition and application of the taught distinctions, not professional qualification. You may review the lessons and retry. Repeat attempts reuse the question bank; a remembered answer is not proof of transfer to a new situation.

Saving a lesson records reading only. Previous lesson completions have not been converted into passing scores. You can continue reading without a pass; the assessment remains unpassed.

Question 1

“All mammals breathe; whales are mammals; so whales breathe” gives premises followed by a conclusion. “Whales are beautiful” alone offers no supporting reason.

What is the conclusion in the whale argument?Whales breatheWhales are mammals

Question 2

“All cats are planets; Luna is a cat; so Luna is a planet” is valid in form but has a false first premise. Validity is not factual accuracy.

What is wrong with this valid argument?Its conclusion fails to follow from the premisesAt least one premise is false

Question 3

“All squares have four sides; this figure is a square; therefore it has four sides” is sound if the described figure really is square.

What must be added to validity for soundness?True premisesA popular conclusion

Question 4

Observing many swans of one color supports an expectation about another swan, but an unobserved population could differ. Sampling location matters.

Why is this conclusion not deductively guaranteed?No observation can ever provide supportUnobserved cases may differ

Question 5

The claim that all birds fly fails for penguins. That does not refute the weaker claim that many bird species fly.

Which claim is defeated by a flightless bird?All birds flyMany birds fly

Question 6

Being a square is sufficient for being a rectangle. Being a rectangle is necessary for being a square but does not guarantee equal sides.

Does being a rectangle suffice for being a square?Yes; the implication reverses automaticallyNo; equal sides are additionally required

Question 7

Guessing the correct answer to a hidden coin toss gives a true belief by luck. Knowing the result through a clear observation supplies a different relation to evidence.

What is missing from the lucky guess?An adequate evidential basisSincerity alone

Question 8

A stick looks bent in water. This defeats a claim that appearances never mislead, but does not establish that every perception is false.

What follows from one perceptual illusion?Every perception is falsePerception is not infallible

Question 9

Many people break promises describes conduct. It does not by itself show that breaking a particular promise is morally acceptable.

What kind of claim is “we ought to keep fair promises”?NormativeMerely a frequency report

Question 10

Before rejecting “traditions deserve respect,” ask whether respect means automatic obedience or careful consideration. The latter is a stronger, more modest claim.

What is the charitable first move?Replace the view with its weakest caricatureClarify the intended meaning before objecting

Continuing does not mark this assessment passed.

Progress stays in this browser, on this device—not an account or cloud backup. Clearing browser data removes it. Visits never count as study. Previous untimed legacy completions are not invented as study days.