The purpose of this study is to prove that Post-KR delay interval is one of the variables in motor learning. It also aims at showing how the intervals vary according to different age groups. Theories of information processing and forgetting are disscussed with the assumption that longer the Post-KR delay interval is, the better peformance subjects show when dealing with simple tasks. Three groups, each comprising 30 subjects of age 7, 11, and adults were given curvilinear repositoning task, under 3 different time sequences of 3, 10, and 20 seconds. The three-way ANOVA with repeated measures conducted in the acquisition phase showed a significant difference in terms of age groups, temporal conditions, and blocks. The two-way ANOVA conducted in the transfer phase resulted in a significant difference among different age groups. Extended Post-KR interval brought about poor learning. This can be attributed to the character of the task, which indicates that theories of information processing and forgetting, specially their attributory interpretations can not be applied in the task of simple tasks.

We could say that the knowledge of results is very important factors in the motor skill learning. This paper was analyzed to stipulate how inside-kick of soccer affect to perform when we present the accuracy of the knowledge of results and post-knowledge of results interval. I randomly selected 60 students in the Hakjin elementary school in Busan, and divided 6 groups. The results were as follows. 1. The qualitative and quantitative knowledge of results in the early motor learning stages were not significant difference in each other of the exercise and the transfer performance. 2. When we tried various time interval of the post-knowledge of results interval in the early motor learning stages, there was very significant difference at P=0.05 level in transfer performance . 3. There was no significant between the accuracy of the knowledge of results and post-knowleclge of results in interaction effects. 4. The most effectively performed group in this experiment was as the quantitative knowledge of results who performed 6 seconds of post-knowledge of results interval.

This paper describes the design theory of a weakly-coupled Tap-off with high density of coupling intervals for CATV and/or MATV systems, by which the degree of freedom in design and density of coupling intervals are significantly increased compared with the intrinsic one. It is also described how to construct the two-way divider (Tap-off) in the generalized type. Furthermore, the practical measurements of the frequency characteristics for a fabricated circuit show very good agreements with theoretical results.