Differences

This shows you the differences between two versions of the page.

--- c:mrm:2026:schedule [2026/04/02 01:16] – [Week 5: Research Questions and Hypothesis II] 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 456: / Line 456: @@
 Etc. . . . .
-  * https://www.youtube.com/watch?v=Z7brxo3QfKg
   * https://www.youtube.com/watch?v=VP8DD9TGNlU
   * https://www.youtube.com/watch?v=zZ3l1jgmYrY
@@ Line 470: / 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 527: / Line 553: @@
 <WRAP half column>
 ==== Assignment ====
+[[.:schedule:building hypotheses]]
 ==== Announcement ====
@@ Line 533: / Line 559: @@
 ===== Week 7 =====
-  * [[w07 note]]
 ----
 <WRAP half column>
+  * [[./schedule/w07 note]]: hypothesis testing via t-test