An Experimenter Finds That Students in a Morning Class Perform

question 69

Multiple Choice

An experimenter finds that students in a morning class perform better on a math test after being taught with a new teaching method compared with students in an afternoon class who are taught with a standard teaching method.He concludes that the new teaching method is superior to the old method.The main problem with this experimenter's conclusion is:

• A) He did not find a random sample of participants.
• B) He did not consider the importance of external validity.
• C) He did not consider the possible influence of participant bias.
• D) He did not consider the time of day that students were being taught.

Understand lateral inhibition and its effects on visual perception.

Explain the function of the lens in the eye.

Comprehend the principles behind color vision and brightness contrast.

Understand shifts and movements along the demand curve

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Definitions:

Estimates

Approximations or educated guesses used in accounting and finance to project future values or record uncertain current values.