NES Quality Control & Assurance 4

Question 1

Which statistical measure BEST represents the spread of student scores on an assessment?

Accepted Answer

Standard deviation

Answer

Standard deviation quantifies how much scores vary from the mean, directly measuring the spread or dispersion of a score distribution.

Question 2

A school implements a new reading intervention but only tracks students who complete the full program. This approach introduces which data quality problem?

Accepted Answer

Attrition bias

Answer

Attrition bias occurs when only completers are analyzed, excluding dropouts who may have lower outcomes, which inflates program effectiveness.

Question 3

Which of the following is an example of triangulating data to evaluate instructional effectiveness?

Accepted Answer

Using test scores, classroom observations, and student work samples together

Answer

Triangulation combines multiple data sources to build a more complete and trustworthy picture of instructional effectiveness.

Question 4

When a standardized test has a ceiling effect, it means:

Accepted Answer

Too many high-performing students score at or near the maximum, limiting differentiation

Answer

A ceiling effect occurs when the test is too easy for the target group, causing high-performing students to cluster near the maximum score.

Question 5

A district uses benchmark assessments three times per year. What is the PRIMARY quality assurance purpose of this schedule?

Accepted Answer

To monitor student progress and allow mid-year instructional adjustments

Answer

Periodic benchmark assessments provide interim data points that allow educators to adjust instruction before the end of the year.

NES Test Practice Test

NES Test Practice Test

NES Quality Control & Assurance 4