政治知識之於民主社會有其重要性，在政治學界中與政治知識相關的研究產出相當豐富，研究者利用政治知識此一變數進行相關研究前，對於題目如何選定、選項如何提供、題型的差異都是研究者需要去關注的重點，而本文主要的研究目的即是聚焦於討論何種題型更適合用來測量民眾的政治知識。 目前國內測量政治知識的問卷題型較為常見的為開放題與選擇題題型，在這兩類題型的討論上，前者被認為會低估受訪者政治知識程度，後者的測量結果則被質疑提供猜題空間導致高估了受訪者的政治知識程度，然而目前國內外卻缺乏足夠的實證研究來證明這兩個題型的適用性。 本文採用具有實驗設計性質的二手資料，利用前後測的方式讓受測者填答相同題目不同題型的問卷，藉此檢視各種知識程度的受測者在面對不同題型時是否會產生回應模式上的差異。本研究發現，開放題會使得較高政治知識程度的受訪者被低估，選擇題反而能準確測量出此類受訪者的知識程度。為了進一步證實受訪者在偏難的題目上所增加的猜題比例並非是來自於盲猜，本文採用多項機率單元模型來檢視受訪者於於選擇題選擇各個答項的機率。研究發現，儘管選擇題無法避免受訪者猜題，但受訪者並非是盲猜，反而會根據其具有的知識依據來答題，故政治知識程度高的受訪者能採用猜題方式答對題目，政治知識低的受訪者無法利用猜題方式猜中答案。整體而言，選擇題比起開放題更適合用來測量民眾的政治知識。 / Political knowledge plays an important role in the democratic society, and therefore there has been much research on political knowledge in the discipline of political science. To study political knowledge, political scientists have to understand the way of questions and options presented, and also the differences between a variety of question formats. This paper aims to analyze which question format is better for measuring the political knowledge of the public. The open-ended and multiple-choice items are both common formats for measuring political knowledge in Taiwan. The open-ended question is always considered to underestimate the respondents’ level of political knowledge, while the multiple-choice format is thought of overestimating the levels of political knowledge for providing the respondents with opportunity to guess. However, a strong evidence to decide the most suitable format for the measurement of political knowledge is still lacking. This paper uses the secondary data which is collected by a pretest-posttest questionnaire to examine whether guessing behavior will emerge or not when the respondents facing the same question with different formats. This research finds that open-ended questions underestimate the respondents’ knowledge levels who has higher level of political knowledge originally, but the multiple-choice questions can estimate the levels more accurately. To further confirm that the higher guess proportions in the more difficult questions are not resulted from the blind guessing, the study examines the probabilities of options selected by Multinomial Probit Model. The research finds that though the respondents may have guess more in multiple-choice question, however, they tend to answer the questions based on their knowledge instead of blind guessing. Therefore, the respondents who have higher levels of political knowledge can guess correctly, while those who have lower levels of political knowledge cannot. In summary, the multiple-choice questions are more suitable to measure people’s political knowledge.

假設市場評價法（Contingent valuation）多用於評估有關某一非市場性財產（Non-market goods）或公共財（Public goods）在民眾心目中的願付價值（Willingness to pay, WTP）。探討受訪者願付價值之研究調查案的問卷設計方式，大致可分成五種，其中開放式出價法和逐步競價法已被證實會對估計造成偏誤，而支付卡法、二分選擇法和雙界二分選擇法則是現今較常為研究者所使用的價格詢問方法，本論文的研究是針對二分選擇法的最佳設計（Optimal design），作一深入的探討。 假設欲探究之母體的願付價值為一服從平均數為 、標準差為 的常態分配，若採用二分選擇法作為價格詢問的方式，則何種詢問方法才能讓參數估計最佳化，由模擬實驗的結果，我們知道若將受訪者隨機等分成兩群，分別詢問兩個不同的價格，且這兩個價格的平均等於預先猜測的母體平均數，那麼不但會有相當不錯的估計結果，在實際的執行上亦較方便。此外，我們提出較容易計算的參數估計量來代替傳統的最大概似估計量（MLE），並以數理證明保證了新的參數估計量有良好的估計性質。 願付價值的研究若對母體資訊不充分時，常會先採行前測（Pretest）。本論文除了探討二分選擇法的最佳設計之外，亦針對支付卡法和二分選擇法運用在前測時，作一深入的討論，結果發現當事先猜測的母體分配參數和真實分配相差很多下，支付卡法和二分選擇法會產生無法估計的情況，因此我們提出新的前測方法，試圖彌補這兩種傳統前測法的不足，我們稱之為序列詢問法（Sequence method）。序列詢問法為一種追蹤母體平均數的方式，依照現在這位受訪者的回答，決定下一位受訪者的詢問價格，在我們的研究中發現，如此的序列詢問方法比傳統的前測法利用更少的資訊，但仍然維持不錯的母體平均數估計結果。

在台灣的英文學習環境中， 閱讀能力ㄧ向被視為學習中最重要的ㄧ環 ， 然而， 閱讀所帶來的沉重負擔， 讓許多學生在有限的教學時數之下往往成為了犧牲品，特別是低成就者。班上參差不齊的英文程度,也對老師造成了教學上極大的困擾。 本研究旨在探討 ，以合作式學習法來縮短學習者程度上的差異，進而提升整體的閱讀能力。此外, 互動式閱讀技巧也分別在實驗組與控制組中教授， 以檢視其對閱讀能力的影響。 參與本研究的學生為 79名台北某公立高中的兩班九十四學年度高一新生， 實驗組施以合作式學習法，控制組則為傳統老師講授的方式， 兩組在同一時間內閱讀同一本教科書， 並分別施以前測， 後測。 最後， 並再針對所有研究對象施以問卷調查， 以期了解研究對象對合作式學習法及互動式閱讀技巧之回應。此外, 老師上課的觀察紀錄及小組的檢視表也一併在本研究中被採用。 本研究的結果摘要如下: 1. 在學生閱讀成就方面，實驗組以漸進的方式，最後超越控制組。 2. 在一學期互動式閱讀技巧實施之後， 研究對象之閱讀能力明顯提升。 3. 在實驗組中 ，高、中、 低成就者對合作式學習法展現許多雷同與少許差異的反應，但整體而言，皆傾向於正面的肯定。 4. 閱讀技巧在實驗組與控制組中似有明顯之差異， 顯見研究對象會依教學活動採取不同的閱讀技巧。 根據研究結果， 本論文擬提出對現行高中閱讀教學之建議，俾為教師及未來研究者提供參考。 / In an EFL environment in Taiwan, reading is regarded as the most essential skill. However, for most students, abundance in reading material makes them feel stressful--especially the weaker ones who tend to be sacrificed due to limited instruction time. For teachers, how to deal with a big mixed-level class has therefore become the most important task. An aim of this study was to examine the effectiveness of cooperative language learning (CLL) skills in bridging gap among students with differing academic abilities and in enhancing students' overall reading comprehension. In addition, the interactive reading approach was adopted in both the experimental and the control groups to examine its effect upon them. Participants of this study included 79 tenth-graders from two intact classes in one public senior high school in Taipei in the fall semester of 2005. The experimental group was engaged in three CLL activities and the control group was instructed in the traditional teacher-centered methods. Both groups were taught by the researcher with the interactive reading approach. During the span of this study, the participants in both groups were assigned to read nine lessons from the textbook. In the meantime, they were instructed under the CLL methods and the traditional teacher-centered methods respectively. Besides, they were given a pretest and four posttests during and after the study. In time, two questionnaires were adopted: one for investigating the reading strategies used by the participants in both groups and the other for measuring the CLL group participants' attitudes and responses of the CLL group toward CLL teaching. Besides, the teacher's classroom observation and the group processing checklists were also employed in this study. After four months of experiment, the main results of this study can now be summarized as follows: 1. The experimental group gradually outscored the control group on the reading comprehension test during the experiment. 2. The participants’ reading comprehension ability improved significantly after the implementation of interactive reading approach. 3. The results showed some similarities and differences among the high/low achievers and the average students in their perceptions toward the CLL. However, the participants' attitudes toward and responses to CLL may be described as being supportive and positive. 4. The adoption of reading strategies seemed diverse between the two groups. On the whole, when exposed to different teaching activities, the participants adopted different reading strategies accordingly. This study concludes that the effects of CLL might be better than those of individual learning in a big class on senior high school students' reading proficiency. It also suggests that the interactive reading approach can be used to enhance senior high school students' reading ability.