本研究主要以文獻探討法、實地訪談法、學習單及問卷調查法等方式進行,發展出「國小高年級學童對同儕自私行為接受度量表」與「國小高年級學童關於自私行為表現自評量表」兩份量表做為研究工具。研究對象以分層比例抽樣方式,抽取1,200名中部八縣市之公立國小高年級學童為樣本。研究主要結果如下:一、國小高年級學童對同儕自私行為接受度偏低二、國小高年級學童自評自私行為表現度偏低三、男生較女生更能接受同儕的自私行為,也較容易表現出自私行為四、六年級學童較五年級更能接受同儕的自私行為,也較容易表現出自私行為五、原住民學童較容易表現出自私行為六、每星期看課外書時間不到一小時之學童,較容易表現出自私行為七、父親學歷國中以下者之學童,較容易表現出自私行為八、母親學歷國中以下者之學童,較能接受同儕的自私行為,也較容易表現出自私行為九、父親低職業社經地位者之學童,較容易表現出自私行為十、父親管教方式採忽視冷漠者之學童,較容易表現出自私行為十一、母親管教方式採寬鬆、忽視冷漠者之學童,較能接受同儕的自私行為,也較容易表現出自私行為十二、家庭氣氛不和諧者之學童,較能接受同儕的自私行為,也較容易表現出自私行為十三、親人無擔任志工經驗者之學童,較容易表現出自私行為十四、男性級任導師所帶領之學童,較能接受同儕的自私行為,也較容易表現出自私行為十五、級任導師管教方式冷漠型之學童,較容易表現出自私行為十六、學校總班級數少的學童,較能接受同儕的自私行為,也較容易表現出自私行為十七、班級人數愈少的學童,愈能接受同儕的自私行為,也愈容易表現出自私行為十八、學生對同儕自私行為之接受度與自評自私行為之表現度間呈現正相關 We used literature review, field interviews, learning sheets and questionnaire survey to develop“ Scale of acceptance to peer's selfish behaviors of high grades schoolchildren in elementary school” and “Scale of self assessment toward selfish behaviors of high grades schoolchildren in elementary school ” . The subjects of this study were 1200 high grades schoolchildren that selected from public and private elementary schools in in middle Taiwan by the way of stratified cluster sampling.Conclusions:1.High grades schoolchildren in elementary school had low acceptance to peer's selfish behaviors.2.High grades schoolchildren in elementary school had low display in their self assessment of selfish behaviors.3.Boys displayed much more selfish behaviors than girls and also had much more acceptance to peer's selfish behaviors than girls.4.The 6th grades schoolchildren displayed much more selfish behaviors than the 5th grades schoolchildren and also had much more acceptance to peer's selfish behaviors than the 5th grades schoolchildren.5.The aboriginal schoolchildren displayed much more selfish behaviors.6.Schoolchildren whose weekly extracurricular reading time was shorter than one hour displayed much more selfish behaviors.7.Schoolchildren whose fathers' education background was lower than junior high school degree displayed much more selfish behaviors.8.Schoolchildren whose mothers' education background was lower than junior high school degree displayed much more selfish behaviors and have much more acceptance to peer's selfish behaviors.9.Schoolchildren with father in low socioeconomic status displayed much more selfish behaviors.10.Schoolchildren with unconcern discipline from their fathers displayed much more selfish behaviors.11.Schoolchildren with unconcern and loose discipline from their mothers displayed much more selfish behaviors and much more acceptance to peer's selfish behaviors.12.Schoolchildren from families without harmonic atmosphere displayed much more selfish behaviors and much more acceptance to peer's selfish behaviors.13.Schoolchildren whose families had no volunteer experiences displayed much more selfish behaviors.14.Schoolchildren with male teachers displayed much more selfish behaviors and accept much more peer's selfish behaviors.15.Schoolchildren with unconcern discipline from their teachers displayed much more selfish behaviors16.Schoolchildren from the schools with less total class number displayed much more selfish behaviors and accept much more peer's selfish behaviors.17.Schoolchildren from the classes with less student number displayed much more selfish behaviors and accept much more peer's selfish behaviors.18.Acceptance of schoolchildren to peer's selfish behaviors had positive relationship toward their self assessment of selfish behaviors.