Differences

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--- c:mrm:2026:schedule [2026/04/02 01:06] – [Week 4: Research Questions and Hypotheses] hkimscil
+++ c:mrm:2026:schedule [2026/04/19 23:13] (current) – [Week 4: Research Questions and Hypotheses] hkimscil
@@ Line 214: / Line 214: @@
 아래는 4주차 동영상에서 언급이 됩니다. 얼바비 교재가 이야기하는 이론에 대한 전반적 설명입니다.
+<del>
   * 파라다임: 관찰이나 추론을 구성하기 위해서 사용하는 근본적인 모델이나 준거틀
@@ Line 257: / Line 257: @@
       * de-structuralism
       * post-modernism
+</del>
 </WRAP>
 <WRAP column half>
@@ Line 352: / Line 352: @@
       * but, in social science
-{{http://commres.net/wiki/_media/science_research_methods.jpg?400}}
+{{:c:science_research_methods.jpg?400}}
     * 이론: 특정한 생활양식과 연관된 관찰에 대한 체계적인 설명
@@ Line 396: / Line 396: @@
   * 각 가설에서의 IV와 DV 혹은 그 외의 것들은 무엇인지
   * 각 변인은 어떻게 측정되었는지에 대해서 설명하시오.
+{{https://ars.els-cdn.com/content/image/1-s2.0-S0160791X23001677-gr1.jpg?400}}
 </WRAP>
@@ Line 403: / Line 405: @@
 <WRAP half column>
 ==== Announcement Quiz 01 ====
-<WRAP box>
-주 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/7qZMXqPC2bY|Research Ethics Week 05]]
@@ Line 471: / Line 442: @@
 </WRAP>
 <WRAP half column>
+<WRAP box>
 Tuskegee Exp.
   * https://www.youtube.com/watch?v=afwK2CVpc9E
@@ Line 483: / Line 455: @@
   * [[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=zZ3l1jgmYrY
   * https://www.youtube.com/watch?v=IRR7CwdHxUE
+</WRAP>
-==== Class Activities ====
-  * Using the library to search research articles
-<del>  * Using the refworks</del>
 ==== 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>
@@ Line 510: / Line 469: @@
 ----
 <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]]
 주차 온라인 수업내용
@@ Line 567: / Line 553: @@
 <WRAP half column>
 ==== Assignment ====
+[[.:schedule:building hypotheses]]
 ==== Announcement ====
@@ Line 573: / Line 559: @@
 ===== Week 7 =====
-  * [[w07 note]]
 ----
 <WRAP half column>
+  * [[./schedule/w07 note]]: hypothesis testing via t-test