The MOST important and generally useful way to enhance reliability is to
A) use the smallest possible number of items.
B) measure something that is important.
C) aggregate your measurements.
D) maximize error variance.

Question

Quizplus · Accepted Answer

Aggregating measurements is a widely recognized method for enhancing reliability in research and assessments. By combining multiple measures, random errors tend to cancel each other out, leading to a more accurate and reliable estimate of the true score. This approach is based on the classical test theory, which suggests that observed scores are composed of true scores and error scores. Aggregating multiple observations reduces the impact of the error component, thereby increasing reliability.

The MOST Important and Generally Useful Way to Enhance Reliability