http://www.commres.net/ 2026-05-25T21:40:30+00:00 http://www.commres.net/ http://www.commres.net/_media/wiki/logo.png text/html 2026-05-25T03:03:58+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/c/ms/2026/schedule/w12.lecture.note?rev=1779678238&do=diff Regression regression (회귀분석) 아래에서 다른 것은 이해하기 쉽지만 t.r 값과 t.b값의 (상관관계계수값과 (r), 리그레션의 계수값 (b's coefficient값)) significance level을 테스트할 때 쓰이는 se.res, se.b값을 구하는 것이 조금 복잡할 수 있다. 개념적으로 text/html 2026-05-25T03:03:52+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/?image=c%3Ams%3A2026%3Aschedule%3Apasted%3A20260525-030352.png&ns=c%3Ams%3A2026%3Aschedule%3Apasted&rev=1779678232&tab_details=history&media_do=diff&do=media <img src="http://www.commres.net/_media/c/ms/2026/schedule/pasted/20260525-030352.png?w=500&amp;h=500&amp;tok=b4f327" alt="20260525-030352.png" loading="lazy" width="500" height="500" /> text/html 2026-05-25T02:30:03+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/?image=types.of.correlations.pptx&ns=0&rev=1779676203&tab_details=history&media_do=diff&do=media <img src="http://www.commres.net/lib/images/fileicons/svg/pptx.svg" alt="types.of.correlations.pptx" loading="lazy" width="500" height="500" /> text/html 2026-05-25T02:29:15+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/?image=c%3Ams%3A2026%3Aschedule%3Apasted%3A20260525-022915.png&ns=c%3Ams%3A2026%3Aschedule%3Apasted&rev=1779676155&tab_details=history&media_do=diff&do=media <img src="http://www.commres.net/_media/c/ms/2026/schedule/pasted/20260525-022915.png?w=500&amp;h=500&amp;tok=beaf61" alt="20260525-022915.png" loading="lazy" width="500" height="500" /> text/html 2026-05-25T02:19:34+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/?image=c%3Ams%3A2026%3Aschedule%3Apasted%3A20260525-021934.png&ns=c%3Ams%3A2026%3Aschedule%3Apasted&rev=1779675574&tab_details=history&media_do=diff&do=media <img src="http://www.commres.net/_media/c/ms/2026/schedule/pasted/20260525-021934.png?w=500&amp;h=500&amp;tok=d41d9c" alt="20260525-021934.png" loading="lazy" width="500" height="500" /> text/html 2026-05-25T02:13:17+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/?image=c%3Ams%3A2026%3Aschedule%3Apasted%3A20260525-021317.png&ns=c%3Ams%3A2026%3Aschedule%3Apasted&rev=1779675197&tab_details=history&media_do=diff&do=media <img src="http://www.commres.net/_media/c/ms/2026/schedule/pasted/20260525-021317.png?w=500&amp;h=500&amp;tok=14dda5" alt="20260525-021317.png" loading="lazy" width="500" height="500" /> text/html 2026-05-25T00:59:26+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/?image=c%3Ams%3A2026%3Aschedule%3Apasted%3A20260525-005926.png&ns=c%3Ams%3A2026%3Aschedule%3Apasted&rev=1779670766&tab_details=history&media_do=diff&do=media <img src="http://www.commres.net/_media/c/ms/2026/schedule/pasted/20260525-005926.png?w=500&amp;h=500&amp;tok=8606b9" alt="20260525-005926.png" loading="lazy" width="500" height="500" /> text/html 2026-05-25T00:54:34+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/?image=c%3Ams%3A2026%3Aschedule%3Apasted%3A20260525-005434.png&ns=c%3Ams%3A2026%3Aschedule%3Apasted&rev=1779670474&tab_details=history&media_do=diff&do=media <img src="http://www.commres.net/_media/c/ms/2026/schedule/pasted/20260525-005434.png?w=500&amp;h=500&amp;tok=8007bd" alt="20260525-005434.png" loading="lazy" width="500" height="500" /> text/html 2026-05-24T23:33:58+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/c/mrm/2026/schedule?rev=1779665638&do=diff 이전 페이지 ---- exploring media theories * Week 01: March 2, 5 * Week 02: March 9, 12 * Week 03: March 16, 19 * Week 04: March 23, 26 (the 1st quiz) ---- choosing media theories * Week 05: March 30, April 2 * Week 06: April 6, 9 ---- developing and revising hypotheses text/html 2026-05-24T22:58:04+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/?image=c%3Ams%3A2026%3Aschedule%3Apasted%3A20260524-225804.png&ns=c%3Ams%3A2026%3Aschedule%3Apasted&rev=1779663484&tab_details=history&media_do=diff&do=media <img src="http://www.commres.net/_media/c/ms/2026/schedule/pasted/20260524-225804.png?w=500&amp;h=500&amp;tok=1cc612" alt="20260524-225804.png" loading="lazy" width="500" height="500" /> text/html 2026-05-24T22:28:19+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/r/data?rev=1779661699&do=diff : Motivating example Suppose you are a researcher studying the effects of student background on academic achievement. The lab recently finished collecting and uploading the dataset (worland5.csv) of students each with 9 observed variables: Motivation, Harmony, Stability, Negative Parental Psychology, SES, Verbal IQ, Reading, Arithmetic and Spelling. The principal investigator hypothesizes three latent constructs Adjustment, Risk, Achievement measured with its corresponding to the following codeb… text/html 2026-05-24T22:27:28+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/?image=r%3Aregression.sample.03.csv&ns=r&rev=1779661648&tab_details=history&media_do=diff&do=media <img src="http://www.commres.net/lib/images/fileicons/svg/csv.svg" alt="regression.sample.03.csv" loading="lazy" width="500" height="500" /> text/html 2026-05-24T22:22:41+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/?image=r%3Aregression.sample.02.csv&ns=r&rev=1779661361&tab_details=history&media_do=diff&do=media <img src="http://www.commres.net/lib/images/fileicons/svg/csv.svg" alt="regression.sample.02.csv" loading="lazy" width="500" height="500" /> text/html 2026-05-24T21:42:57+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/?image=r%3Aregression.sample.csv&ns=r&rev=1779658977&tab_details=history&media_do=diff&do=media <img src="http://www.commres.net/lib/images/fileicons/svg/csv.svg" alt="regression.sample.csv" loading="lazy" width="500" height="500" /> text/html 2026-05-24T21:37:33+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/c/ms/2026/schedule?rev=1779658653&do=diff 통계에 대한 기초적인 이해 가설과 가설검증 * 가설의 종류와 그 종류에 따른 통계분석법 * z-test * t-test * ANOVA * Factorial ANOVA * correlation * regression * multiple regression * factor analysis text/html 2026-05-24T04:54:00+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/c/ms/multiple_regression_lecture_note_for_r?rev=1779598440&do=diff Multiple regression with pr, spr, zero-order r # multiple regression: a simple e.g. # # rm(list=ls()) d <- read.csv("http://commres.net/wiki/_media/regression01-bankaccount.csv") d colnames(d) <- c("y", "x1", "x2") d # attach(d) lm.y.x1 <- lm(y ~ x1, data=d) summary(lm.y.x1) lm.y.x2 <- lm(y ~ x2, data=d) summary(lm.y.x2) lm.y.x1x2 <- lm(y ~ x1+x2, data=d) summary(lm.y.x1x2) lm.y.x1x2$coefficient # y.hat = 6.399103 + (0.011841)*x1 + (−0.544727)*x2 a <- lm.y.x1x2$coefficient[1] b1 <- lm.y… text/html 2026-05-21T03:00:19+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/t_test_in_multiple_regression?rev=1779332419&do=diff t test of regression coefficients in multiple regression text/html 2026-05-21T02:17:54+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/r/data/performance_index?rev=1779329874&do=diff text/html 2026-05-21T02:17:29+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/?image=r%3Adata%3Apasted%3A20260521-021729.png&ns=r%3Adata%3Apasted&rev=1779329849&tab_details=history&media_do=diff&do=media <img src="http://www.commres.net/_media/r/data/pasted/20260521-021729.png?w=500&amp;h=500&amp;tok=666b20" alt="20260521-021729.png" loading="lazy" width="500" height="500" /> text/html 2026-05-21T02:17:18+00:00 hkimscil (hkimscil@undisclosed.example.com) http://www.commres.net/?image=r%3Adata%3Apasted%3A20260521-021718.png&ns=r%3Adata%3Apasted&rev=1779329838&tab_details=history&media_do=diff&do=media <img src="http://www.commres.net/_media/r/data/pasted/20260521-021718.png?w=500&amp;h=500&amp;tok=4868cb" alt="20260521-021718.png" loading="lazy" width="500" height="500" />