Desmond Thinks His New Tutoring Methods Are Highly Effective Compared

question 72

Multiple Choice

Desmond thinks his new tutoring methods are highly effective compared to commercially available methods.He selects the worst students in his statistics class and tries his new tutoring strategy.Which statement describes a threat to the validity of his hypothesis even if the students do very well after the tutoring sessions?

• A) Instrumentation errors will skew the results.
• B) Regression to the mean is likely to occur.
• C) Confirmation bias is likely to occur.
• D) The testing sequence is a confounding factor.

---

Definitions:

Passed Test

An indication that a particular sample or set of data meets or exceeds the criteria established for a specific statistical test.

Certification Test

An examination designed to certify competency, knowledge, or proficiency in a particular field or profession.

Multiplication Rule

A principle in probability that determines the likelihood of two independent events occurring together by multiplying their individual probabilities.

Probability

The measure of the likelihood that an event will occur.