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TABLE I
CLASS MEANS FROM SUMMATED RATINGS ON PRE- AND POSTTEST
OF PUPIL QUESTIONNAIRE
Pretest Posttest
Classes Mean S.D. Mean S.D.
1 24.2632 6.2436 30.6842 7.4763 2 25.9706 5.5949 33.6176 7.5399 3 27.3000 6.6341 24.5500 5.8443 4 30.5926 5.7195 31.9259 7.3586 .5 30.5200 7.1305 36.7200 6.7053 6 28.2609 4.1256 28.0435 5.5799 7 28.7143 6.6267 29.3571 7.2389 8 27.7222 8.5736 31.0555 6.7343 9 28.0769 5.9929 31.0385 6.8847
10 36.4643 5.5610 40.2143 5.0652 11 31.0500 7.0224 30.0000 7.0636 12 27.2143 8.1918 32.3857 7.4980 13 30.6087 7.3531 31.0435 7.2831 14 31.5000 6.2110 36.5714 5.1994 15 25.7000 6.5943 34.0000 5.5346 16 31.5000 5.8737 31.8333 5.5546 17 28.0909 4.5046 27.6364 5.3531 18 27.8461 4.5616 26.5385 7.6335 19 32.1905 6.4158 25.6667 8.8450 20 29.8333 4.9379 30.3889 4.9485 21 28.7368 5.2689 30.1053 6.2708 22 25.1579 5.7761 27.9474 5.8924 23 29.7000 5.8888 29.8000 3.4255 24 30.4444 4.6807 35.3333 5.3798 25 30.8125 4.4099 34.0625 7.2108