台灣地區硬幣系統之可辨性評估研究

摘要

硬幣在日常交易行爲中佔有極重要的地位，我國現行流通硬幣原本有四種面值，但在民國81年10月9日新50元硬幣發行後已經增爲五種。本研究的目的旨在測試50元硬幣加入後，五種硬幣相互間的可辨性，一共進行了兩個實驗。實驗一有受試者60人(男30人，女30人)參與，就五種幣別在視覺捜尋和觸覺捜尋測計其尋找時間和錯誤率；結果發現(1)在視覺捜尋方面，以1元的視覺辨識時間和錯誤率爲最多，且最易與5角發生混淆；(2)在觸覺捜尋方面，亦以1元和50元的觸覺辨識錯誤率爲最高，其中1元極易與5元及5角混淆，而50元則較易與10元混淆，因此非常不利於盲人或光線不足場合的辨識。實驗二進一步就實驗一所發現容易混淆的三對硬幣(50元/10元，5元/1元，1元/5角)，要求受試者(男30人，女30人)以矇眼方式分辨；結果發現：1元/5角組的分辨時間和錯誤率最低，其次爲50元/10元組，而以5元/1元組的分辨時間和錯誤率最差。

Abstract

Coin is one of the most important tools in business exchange processes. In addition to the four circulation coins of NT$10,S,l,and O.S,a new version of NT$SO coin was introduced in 1992. The purpose of this study was to evaluate the discriminability of NT$SO with the existing coin system. Two experiments were adopted in this study. In experiment I, 30 male and 30 female college students performed both visual and touch trials of discrimination in all five coin combinations to test the search times needed and error rates committed. Data analysis showed that: (1) NT$l was the worst both in search time and error rate of the visual trial and easily confused with NT$0.5;(2) NT$l was also the worst in error rate of blind trials and easily confused with NT$S and O.S; and (3) NT$SO was the second worst in error rate of blind trials, and easily confused with NT$SO. In Experiment II, the subjects (30 males and 30 females) were asked to sort out the following sets of coin mixtures by touch only NT$50/NT$10, NT$S/NT$l, and NT$1/NT$0.5. The results showed that: the sorting of NT$5/NT$1 mixture took the longest time with the worst error rate; NT$l/NT$O.S was the best.

關鍵詞:

• 硬幣設計
• 可辨性
• 人因工程

Keywords:

• coin design
• discriminability
• human factor