研究設(shè)計之測量-資料下載頁
2024-09-28 17:16本頁面
【導(dǎo)讀】提高效度與信度的途徑。Reverse:從問題/數(shù)據(jù)到概念？
【正文】 onal feelings or just what people think investigators want to hear? 3. Is poverty best represented by measures of low absolute ine (a minimum subsistence) or low relative ine (., 50% of national median ine)? 4. How closely does selfreported church attendance correspond to actual church attendance? 5. Are scores on the evennumbered and oddnumbered items on this test highly correlated? Research indicates that in recent years respondents’ answers to survey questions measuring racial prejudice underestimate actual racial prejudice. This underestimate is an example of __________ measurement error, which affects measurement __________. ? random。 reliability ? random。 reliability and validity ? systematic。 validity ? systematic。 reliability and validity Systematic error would be least likely to occur with which of the following measures? 1. a miscalibrated yardstick that is an inch short 2. an IQ test developed for Englishspeaking . citizens that is administered to French Canadians 3. a question measuring child abuse that asks, ―how often do you hit your child when she doesn’t obey you?‖ 4. scores on the multiplechoice portion of an exam 5. reports of gambling winnings on IRS tax return Validity and Reliability ? Reliability is a necessary, but insufficient, condition, for validity ? validity is more important, but reliability is more easily tested ? Think about possible errors Low V Low R Low V High R Low V Low R High V High R 提高效度與信度：減少誤差 ? Participant (object who) ? Situational factor (where, how, when) ? Measurer (subject who) ? Instrument (what) ? Facial attractiveness? 提高效度與信度：減少誤差 ? Participant (object who)客體 /對象 ? Situational factor (where, how, when)情境與程序 ? Measurer (subject who)主體 ? Instrument (what)工具 ? Facial attractiveness? 提高信度的途徑 ? 訪談、試測 ? 增加同類問題 /指標(biāo) ? 去掉“區(qū)分性”較低的指標(biāo) 提高效度的途徑 ? 訪談、試測 ? 去掉“區(qū)分性”較低的指標(biāo) ? 多種測量方法 SPSS 學(xué)生設(shè)計的例子
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