What is a Stanine in test scores?

What is a Stanine in test scores?

• A. Stanine compresses scores into nine divisions
• B. Stanine uses ten percentile bins
• C. Stanine is a six-level scaled score
• D. Stanine is a raw-score index

Answer: (A)

Stanine represents performance on a nine-point scale where raw scores are converted into nine equal bands labeled from 1 to 9. This compression makes interpretation simple: each band captures a broad range of scores, with middle bands reflecting average performance and higher or lower bands indicating above- or below-average levels. Stanine is designed to facilitate easy comparison across tests or groups without getting bogged down in exact raw scores or detailed percentile ranks. It’s not about ten percentile bins, nor a six-level scaled score, nor a raw-score index. The description that stanine compresses scores into nine divisions accurately captures how this scoring method works.

Stanine represents performance on a nine-point scale where raw scores are converted into nine equal bands labeled from 1 to 9. This compression makes interpretation simple: each band captures a broad range of scores, with middle bands reflecting average performance and higher or lower bands indicating above- or below-average levels. Stanine is designed to facilitate easy comparison across tests or groups without getting bogged down in exact raw scores or detailed percentile ranks. It’s not about ten percentile bins, nor a six-level scaled score, nor a raw-score index. The description that stanine compresses scores into nine divisions accurately captures how this scoring method works.