-52
h 3: There are no significant differences in the
individual comparisons between the experimental and
control groups for the variable, nature of the problem.
h3: 02<01 05<04 02<04 05<01
h4: There is no significant difference in the pre- and
posttest comparison for the variable, nature of the problem.
h 4: 02<0
42 3
Table IV shows the F and t ratios for the nature of the
problem variable obtained through comparison of experimental
and control groups for five inequalities suggested in the
design.
TABLE IV
F AND T RATIOS OF FIVE DESIGN SUBGROUPS
ON NATURE OF THE PROBLEM SCORE OF OBSERVATION INSTRUMENT
Nature of the Problem Subgroups F Ratio d.f.
02<01 3.1902 11 05<0 2.7449 12 02<04 0.2965 12 0 5<0 16.5060 ** 11 T Ratio d.f. 02<03 0.723 12
* confidence level 0.05
** confidence level 0.01