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c:mrm:2026:schedule [2026/04/02 01:13] – [Week 4: Research Questions and Hypotheses] hkimscilc:mrm:2026:schedule [2026/04/12 09:54] (current) – [Week 7] hkimscil
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 <WRAP half column> <WRAP half column>
 ==== Announcement Quiz 01 ==== ==== Announcement Quiz 01 ====
-<WRAP box> 
-6주 첫시간 퀴즈있습니다.  
-시험문제는 40-50문제 정도입니다.  
- 
-시험범위는  
-  * 5주차까지의 모든 동영상을 포함합니다. 
-  * [[:Research Methods Lecture Note]] 
-    * [[http://commres.net/wiki/research_methods_lecture_note#%EA%B0%80%EC%84%A4%EC%9E%91%EC%84%B1|가설의 작성]]까지  
-  * {{:the_third_person_effect_sprial_of_silence.pdf|제3자효과와침묵의나선 연계}} 논문내용 
-  * 얼 바비 교재 내용 (파트 1) 
-    * 제 1, 2, 3 장 + 4 장 
-    * 과학과 사회조사 
-    * 사회탐구 : 윤리와 정치 
-    * 탐구, 이론, 패러다임 
-  * 그 외에 스케쥴 페이지에서 언급된 문서 
-    * [[:Variables]] 
-      * [[:Types of Variables]] 
-      * [[:Level of Measurement]] 
-    * Induction, Deduction 
-    * [[:Hypothesis]] 
-    * [[:Operationalization]], [[:Conceptualization]] 
-    * [[:Causal Relationship in Social Science|사회과학에서의 인과관계]] 
-      * [[:Spurious Relationship]] 
-      * [[:Ecological Fallacy]] 
-      * [[:Individual Fallacy]]  
-      * [[:Unit of Analysis]] 
- 
-</WRAP> 
- 
- 
- 
   * [[https://youtu.be/5XmPotGh79c|Research Process and Proposal, week 05]]   * [[https://youtu.be/5XmPotGh79c|Research Process and Proposal, week 05]]
   * [[https://youtu.be/7qZMXqPC2bY|Research Ethics Week 05]]   * [[https://youtu.be/7qZMXqPC2bY|Research Ethics Week 05]]
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 </WRAP> </WRAP>
 <WRAP half column> <WRAP half column>
 +<WRAP box>
 Tuskegee Exp. Tuskegee Exp.
   * https://www.youtube.com/watch?v=afwK2CVpc9E   * https://www.youtube.com/watch?v=afwK2CVpc9E
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   * [[https://www.google.com/search?q=tearoom+trade+study+ethical+issues&oq=tearoom+trade+&gs_lcrp=EgZjaHJvbWUqBwgDEAAYgAQyBggAEEUYOTIHCAEQABiABDIHCAIQABiABDIHCAMQABiABDIGCAQQABgeMgYIBRAAGB4yBggGEAAYHjIGCAcQABgeMgYICBAAGB4yBggJEAAYHtIBCDk1NTFqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8|google search]]   * [[https://www.google.com/search?q=tearoom+trade+study+ethical+issues&oq=tearoom+trade+&gs_lcrp=EgZjaHJvbWUqBwgDEAAYgAQyBggAEEUYOTIHCAEQABiABDIHCAIQABiABDIHCAMQABiABDIGCAQQABgeMgYIBRAAGB4yBggGEAAYHjIGCAcQABgeMgYICBAAGB4yBggJEAAYHtIBCDk1NTFqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8|google search]]
  
-. . . .  +Etc. . . . . 
-  * https://www.youtube.com/watch?v=Z7brxo3QfKg+
   * https://www.youtube.com/watch?v=VP8DD9TGNlU   * https://www.youtube.com/watch?v=VP8DD9TGNlU
   * https://www.youtube.com/watch?v=zZ3l1jgmYrY   * https://www.youtube.com/watch?v=zZ3l1jgmYrY
   * https://www.youtube.com/watch?v=IRR7CwdHxUE   * https://www.youtube.com/watch?v=IRR7CwdHxUE
 +</WRAP>
  
  
-==== Class Activities ==== 
-  * Using the library to search research articles 
-<del>  * Using the refworks</del> 
  
 ==== Assignment ==== ==== Assignment ====
-Class activities 1 
-  * discuss your research interests 
-  * narrow down them  
-  * find a research article per each person 
-  * post them under abb discussion forum 
-Class activities 2 
-  * making hypotheses in class discussion forum 
-  * 2 * # of group members  
-  * one for difference hypothesis 
-  * the other for association hypothesis 
 </WRAP> </WRAP>
  
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 ---- ----
 <WRAP half column> <WRAP half column>
 +[[:sampling]]
 +  * population -- parameter 
 +  * sample -- (sample) statistics
 +  * inferential statistics
 +  * (확률과 통계시간)
 +  * probability vs. non-probability sampling
 +  * sample frame
 +  * sampling -- equal chance of being selected
 +  * [[:r:sampling distribution]] simulation in R 
 +  * [[:hypothesis testing]]
 +    * building a (research) hypothesis (media content for playing game will reduce the game playing time for high school students). 
 +    * null hypothesis 
 +    * z-score location (or probability at that location)
 +    * reject the null hypothesis 
 +      * since we rejected the null, we take (accept) the research hypothesis
 +    * or fail to reject
 +      * since we fail to reject, we accept the null hypothesis
 +
 +  * Hypothesis 
 +    * H1: There will be a difference in spending time in playing games between the high school students who take the media education content that we create and maintain and the students who do not. 
 +    * HO: There will be no difference in spending time in playing games between the high school students who take the media education that we create and manage and the student who do not.  
 +    * Situation 1. 고등학교 학생들의 게임에 쓰는 시간과 표준편차를 알고 있을 때 (하루 평균 160분 표준편차 40)
 +    * S2. 고등학교 학생들의 (모집단의) 게임에 쓰는 시간만 알고 있을 때 (하루 평균 160분)
 +    * S3. 모집단의 파라미터를 전혀 모를 때 (na = nb = 50)
 +    * S4. 교육의 효과를 알고 싶은 데, 샘플 리쿠르트 자원이 부족할 때 (n=50)
 +
 +  * [[:t-test]]
  
 6주차 온라인 수업내용 6주차 온라인 수업내용
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 <WRAP half column> <WRAP half column>
 ==== Assignment ==== ==== Assignment ====
 +[[.:schedule:building hypotheses]]
 ==== Announcement ==== ==== Announcement ====
  
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 ===== Week 7 ===== ===== Week 7 =====
-  * [[w07 note]] 
 ---- ----
 <WRAP half column> <WRAP half column>
 +  * [[./schedule/w07 note]]: hypothesis testing via t-test
  
  
c/mrm/2026/schedule.1775092418.txt.gz · Last modified: by hkimscil

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