Determine if the following statement is True or False or Can’t Tell.

A correlation coefficient would be helpful to study the independence of gender and education level.

True

Question

Determine if the following statement is True or False or Can’t Tell.

A correlation coefficient would be helpful to study the independence of gender and education level.

True

BlackTom AI · Accepted Answer

The question asks whether the statement is True, False, or Can’t Tell about using a correlation coefficient to study the independence of gender and education level.
Option evaluation: The prompt provides an answer of False, so we need to reason why the statement is not true.
First, understand what a correlation coefficient does: Pearson’s r assesses the strength and direction of a linear relationship between two numerical variables. It is not appropriate for measuring independence between a categorical variable (gender) and an ordinal/categorical variable (education level). This mismatch means Pearson correlation does not properly capture whether gender and education are independent.
Second, consider the appropriate tools: For independence between two categorical/ordinal variables, a chi-square test of independence (or a measure of association like Cramér’s V or the gamma statistic for ordinal data) is typically used. These methods assess whether there is an association between categories of gender and categories/levels of education, rather than assessing linear correlation.
Third, evaluate why the statement is misleading: If one were to use a correlation coefficient between a binary/categorical variable (gender, coded as 0/1) and an ordinal education level, the result could be arbitrary and misrepresent the true relationship. This would not reliably test independence and could be driven by arbitrary coding choices.
Fourth, summarize the reasoning for why the statement is false: Because correlation coefficients are designed for numerical variables and linear relationships, they are not appropriate tools to assess independence between gender (categorical) and education level (categorical/ordinal). The correct approach would be a chi-square test of independence or a suitable nonparametric/ordinal association measure, not a correlation coefficient.
Fifth, consider edge cases: Some people might think Spearman or Point-Biserial correlations could be used, but even these have limitations here; gender as a nominal category does not have a natural numeric order, and education level’s ordinal nature complicates using standard correlation as a test of independence. Therefore, the claim that a correlation coefficient would be helpful is not accurate.
In sum, the statement is not true because correlation coefficients are not the right tool to assess independence between a categorical variable (gender) and an ordinal/categorical variable (education level); a chi-square test of independence (or related measures) is more appropriate.

COMM_V 191 201 202 203 204 2024W2 2024W2 COMM 191 Midterm - Friday, March 7, 2025

Determine if the following statement is True or False or Can’t Tell. A correlation coefficient would be helpful to study the independence of gender and education level. True

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