Which of the Following Is More Likely to Be a Problem

question 44

Multiple Choice

Which of the following is more likely to be a problem with a cross-sectional, than a longitudinal study?

• A) Sample sizes are small.
• B) Repeated presentation of material creates learning.
• C) Younger generations do not do as well on standardized tests.
• D) The final measures are obtained from survivors-those who are most robust and healthy.

---

Definitions:

Standard Deviation

A measure of the dispersion or variation within a set of numerical data, indicating how spread out the values are from the average.

Correlation Coefficients

A measure that determines the degree to which two variables' movements are associated.

Correlation Coefficient

A statistical measure that calculates the strength and direction of a linear relationship between two variables on a scatterplot.

Expected Return

The probable return on an investment, considering all possible outcomes and their probabilities, representing the average of all possible returns.