Research Is Reported in Which the T-Test Is Used to Make

question 34

Multiple Choice

Research is reported in which the t-test is used to make multiple comparisons within the groups established for the study. Which of the following statements would someone reading the research correctly include in a critique of the study?

• A) "The researcher did not appear to know how to make correct use of the t-test."
• B) "The t-test is the correct statistic to use when making comparisons between groups."
• C) "There is concern over a Type II error caused by the multiple use of t-tests."
• D) "With no mention of the Bonferroni procedure, it is difficult to judge the levels of significance."

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Definitions:

Water Consumption

The amount of water utilized by individuals, households, or groups for drinking, sanitation, cooking, and other purposes.

Confidence Interval

A span of numerical outcomes obtained from statistical analysis of a sample, which probably includes the value of a parameter from the entire population that is not known.

Sample Standard Deviation

A statistic that measures the dispersion or variability of a sample set of data points from its mean.

Interneurons

Neurons that transmit impulses between other neurons, especially as part of reflex arcs in the central nervous system.