Hostel Welfare Officer Paper II · 6 Educational Statistics · APPSC Paper I
6.1 Statistics for teachers notes
2 notes, in reading order.
- 6.1.1Statistics in the classroom: averages, spread and correlation of scores
A teacher first arranges a class's scores (array, frequency table, graph), sums them up with an average (mean, median or mode), shows how spread out they are (range, quartile deviation, mean deviation, variance, standard deviation), places a pupil in the group with percentiles and standard scores, and uses correlation (−1 to +1) to see whether two sets of scores move together.
Standard · 16 min · Read here - 6.1.2Testing and evaluation: kinds of tests, qualities of a good test, types of evaluation and norms
Measurement gives a number, evaluation adds a value judgement; a good test is valid, reliable, objective and usable and has norms; evaluation is placement (before teaching), formative and diagnostic (during), summative (at the end), while prognostic tests predict future success.
Standard · 14 min · Read here
Practise Statistics for teachers. Questions with answers explained, from the same topics.
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