64. A nonprofit organization is determining which existing donors will donate again for a current campaign. The organization decides to look at its donor database for all donors who have donated two or more × over the past five years. Which measures should be used to determine the probability of receiving a donation from an existing donor over time?
Answer: A
A score
Using a score is an effective measure for determining the probability of receiving a donation from an existing donor over time. This scoring method allows the organization to quantify donor behavior and identify patterns that are indicative of future donations.
A) A score
A score is a systematic way to evaluate and quantify the likelihood of donor engagement based on historical data. By analyzing past donations, the organization can assign scores that reflect the probability of a donor contributing again, making this option the most suitable for predicting future donations.
B) F-statistic
The F-statistic is primarily used in statistical hypothesis testing to compare variances across groups. It is not directly applicable for assessing individual donor behavior or predicting future donations, making it an inappropriate choice for this scenario.
C) Median
The median is a measure of central tendency that provides a midpoint value in a data set. While it can summarize donation amounts, it does not specifically measure the likelihood or probability of future donations from individual donors, which is essential for this analysis.
D) R-squared
R-squared is a statistical measure that indicates the proportion of variance in the dependent variable that can be explained by the independent variable(s) in regression analysis. However, it does not directly assess individual donor probabilities and is therefore not suitable for determining future donation likelihood.
Conclusion
The use of a score is the most effective approach for predicting the probability of receiving donations from existing donors, as it directly relates to analyzing donor behaviors over time. In contrast, the other options—F-statistic, median, and R-squared—do not provide the necessary insights into individual donor actions, rendering them ineffective for this particular analysis.