本研究旨在探討觀察學習中，不同「學習中示範者」結果獲知的相對頻率，對觀察者學習手臂外移簡單動作的影響。研究者以大學在學女生四十名為觀察者（平均年齡21.1歲），隨機分派到四組觀察組之一：(1)100%KR組，(2)50%KR組，(3)20%KR組和(4)NOKR組。實驗處理之後，進行一分鐘保留測驗和十分鐘保留測驗，所獲得的資料，先進行依變項分數（AE、VE、CE、|CE|）的計算，再分別進行混合設計二因子變異數分析和杜凱氏法（HSD）事後比較。結果發現:在動作準確性（AE）方面，各組示範者結果獲知相對頻率保留期之間，有交互作用的關係存在，在十分鐘保留，NOKR組和20%KR組動作的準確性顯著高於100%KR組；在100%KR組，十分鐘保留的動作準確性顯著低於一分鐘保留；在NOKR組，十分鐘保留的動作準確性顯著高於一分鐘保留。在動作變異性（VE）和動作偏向（CE）方面，各組示範者結果獲知相對頻率與保留期之間，沒有交互作用的關係存在；各組之間和保留期之間也沒有顯著的差異。在動作偏量（|CE|）方面，各組示範者結果獲知相對頻率與保留期之間，有交互作用的關係存在，在十分鐘保留，20%KR組動作的偏量顯著低於100%KR組；NOKR組動作的偏量顯著低於50%KR組和100%KR組；在100%KR組，十分鐘保留的動作偏量顯著高於一分鐘保留；在NOKR組，十分鐘保留的動作偏量顯著低於一分鐘保留。本研究結果經過討論後得到的結論是：觀察「學習中的示範者」，或是觀察「學習中的示範者」並接收示範者較低的結果獲知相對頻率，會影響動作準確性和動作偏量的學習。

The purpose of this study was to investigate the effect of relative frequency of KR, from the learning model, on the learning of simple motor task for observer. Forty female university students (mean age = 21.1 years) served as participants and were randomly assigned to one of the following observation groups: (a)100%KR group; (b)50%KR group; (c)20%KR group; and (d)NOKR group. Simple arm-outward movements was experimental tasks. After experiments treatments, all participants took both one-minute retention test and ten-minute retention test. Scores of absolute error (AE), variable error (VE), constant error (CE)and absolute constant error(|CE|) were dependent measures. Two-way ANOVA with one factor repeated and Tukey's HSD method were used for statistical analysis. In AE scorse, interaction between groups and retentions was found. In ten-minute retention, NOKR group and 20%KR group were better accurate than that in 100%KR group. In 100%KR group, ten-minute retention was less accurate than that in one-minute retention. In NOKR group, ten-minute retention was better accurate than that in one-minute retention. In VE and CE scores, there were not interaction between groups and retentions. Furthermore there were not significant different of both groups and retentions. In |CE| scores, interaction between groups and retentions was found. In ten-minute retention, NOKR group and 20%KR group were less bias than that in 100%KR group, NOKR group was less bias than that in 50%KR group. In 100%KR group, ten-minute retention was higher bias than that in one-minute retention. In NOKR group, ten-minute retention was lower bias than that in one-minute retention. It is concluded that, during observational learning, no KR or lower relative frequency of KR from learning model is a learning variable of simple motor task.