The __________ is a measure of how spreads out points are from the mean.
Correct answer: C. standard deviation
- A. arithmetic mean
- B. geometric mean
- C. standard deviation
- D. variance
Explanation
Standard deviation shows the typical distance of scores from their mean, so it directly describes how spread out the points are. Variance also measures spread, but it expresses the squared form of this dispersion.
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Assessment gathers evidence of learning, while evaluation uses that evidence to judge achievement, teaching or a programme. Coverage includes formative and summative assessment, diagnostic and placement tests, validity, reliability, objectivity, scoring, grading, feedback, and norm-referenced versus criterion-referenced interpretation. Measurement supplies numerical results, but evaluation involves a broader judgement.
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