A Researcher Studies the Effect Upon Pain Control of Providing

question 9

Multiple Choice

A researcher studies the effect upon pain control of providing pet therapy for children on a pediatric ward. While conducting the study, the researcher becomes aware of a strong correlation between parental presence and hours of children's sleep. What is this correlation?

• A)The ability to consent far more subjects than were originally projected: a lucky occurrence
• B)Relationships between variables that were not hypothesized or predicted from the framework: serendipitous finding
• C)The identification of a variable that affects the dependent variable and distorts its value: extraneous variable
• D)A condition that affects generalization: limitation

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Definitions:

Degrees Of Freedom

The number of independent values or quantities that can vary in the calculation of a statistic.

Null Hypothesis

A statement that there is no effect or no difference, which is tested statistically to be either rejected or not rejected based on data.

Expected Frequencies

The predicted count of occurrences across different categories in a statistical analysis.

Observed Frequencies

The actual counts or occurrences of variables in a dataset, as recorded or observed without any modifications.