Do Daughters Tend to Be Taller Than Their Mothers? to Answer

question 21

Multiple Choice

Do daughters tend to be taller than their mothers? To answer this question, the heights of mothers and daughters from 20 families were recorded. Which of the following is the better method for testing whether daughters tend to be taller than mothers?

• A)Sign test
• B)Data transformation and t-confidence interval of transformed data
• C)Mann-Whitney Test
• D)Independent samples t-test

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Definitions:

Research Method

A systematic plan for conducting research, involving techniques and steps to collect and analyze information to increase our understanding of a topic or issue.

Experimenter Bias

A form of bias introduced by the experimenter whose expectations about the outcome of the experiment can be subtly communicated to the participants.

Confounds

Variables that the researcher failed to control, or eliminate, damaging the internal validity of an experiment.

Double-Masked Design

A research study design in which neither the participants nor the researchers know who is receiving a particular treatment to prevent bias.