Which term is described as 'Group score' in the provided material?

• A. Standard error of the mean
• B. Angoff method
• C. Standard deviation
• D. Ebel Method

Answer: (C)

The idea being tested is how we describe how spread out a set of scores is within a group. Standard deviation is the measure that captures this dispersion: it tells us, on average, how far each individual score lies from the group’s average score. When a group’s scores are very close to the mean, the standard deviation is small; when the scores vary a lot, the standard deviation is larger. This single number is a practical summary of the overall consistency of the group’s performance.

Think of a class where most students score around 85 with little variation—the standard deviation is small. If scores range widely from 60 to 95, the standard deviation is large. That’s why this term is described as the “group score” in terms of dispersion.

The other options describe different ideas: the standard error of the mean relates to how precisely the sample mean estimates the population mean, not the spread of individual scores. The Angoff and Ebel methods are procedures for setting passing standards through expert judgment, not measures of score variation within a group.