Re: GLM vs. ANOVA

1999-12-15 Thread Alex Yu
procedure. Chong-ho (Alex) Yu, Ph.D., CNE, MCSE Instruction and Research Support Information Technology Arizona State University Tempe AZ 85287-0101 Voice: (602)965-7402 Fax: (602)965-6317 Email: [EMAIL PROTECTED] URL:http://seamonkey.ed.asu.edu/~alex/

Re: search engines

2000-01-14 Thread Alex Yu
I use meta-search-engine such as savvysearch and Web Ferret. Chong-ho (Alex) Yu, Ph.D., CNE, MCSE Instruction and Research Support Information Technology Arizona State University Tempe AZ 85287-0101 Voice: (602)965

Re: ANOVA causal direction

2000-02-10 Thread Alex Yu
. Chong-ho (Alex) Yu, Ph.D., CNE, MCSE Instruction and Research Support Information Technology Arizona State University Tempe AZ 85287-0101 Voice: (602)965-7402 Fax: (602)965-6317 Email: [EMAIL PROTECTED] URL:http://seamonkey.ed.asu.edu/~alex

Re: Weighted Kappa

2000-03-08 Thread Alex Yu
involved, a repeated measures approach can be used to check the reliability: Horst, P. (1949). A Generalized expression for the reliability of measures. Psychometrika, 14, 21-31. ******** Chong-ho (Alex) Yu, Ph.D., MCSE, CNE Inst

Maple V and regression function

2000-03-28 Thread Alex Yu
. Chong-ho (Alex) Yu, Ph.D., CNE, MCSE Instruction and Research Support Information Technology Arizona State University Tempe AZ 85287-0101 Voice: (602)965-7402 Fax: (602)965-6317 Email: [EMAIL PROTECTED] URL:http://seamonkey.ed.asu.edu/~alex

Re: Exploratory data analysis

2000-04-03 Thread Alex Yu
. Chong-ho (Alex) Yu, Ph.D., CNE, MCSE Instruction and Research Support Information Technology Arizona State University Tempe AZ 85287-0101 Voice: (602)965-7402 Fax: (602)965-6317 Email: [EMAIL PROTECTED] URL:http://seamonkey.ed.asu.edu/~alex

Re: Exploratory data analysis

2000-04-03 Thread Alex Yu
and here's one that will give you a headache http://seamonkey.ed.asu.edu/~behrens/asu/reports/Peirce/Logic_of_EDA.html Actually the link above is an older version. Try: http://seamonkey.ed.asu.edu/~alex/pub/Peirce/Logic_of_EDA.html The citation is: Yu, C. H. (1994, April). Induction?

ANOVA, Robustness, and Power

2000-06-22 Thread Alex Yu
. Chong-ho (Alex) Yu, Ph.D., CNE, MCSE Instruction and Research Support Information Technology Arizona State University Tempe AZ 85287-0101 Voice: (602)965-7402 Fax: (602)965-6317 Email: [EMAIL PROTECTED] URL:http://seamonkey.ed.asu.edu/~alex

Logistic regression

2000-11-08 Thread Alex Yu
? Thanks. Chong-ho (Alex) Yu, Ph.D., MCSE, CNE Academic Research Professional/Manager Educational Data Communication, Assessment, Research and Evaluation Farmer 418 Arizona State University Tempe AZ 85287-0611 Email: [EMAIL

EdStat: Factoring tetrachoric matrix in SAS

2000-11-24 Thread Alex Yu
_='corr'; input _name_ $ as1-as24 bs1-bs24 cs1-cs25 ds1-ds25 es1-es25 fs1-fs25 gs1-gs25 hs1-hs60;*/ data matrix2; set matrix; proc factor data=matrix method = prinit scree; run; Chong-ho (Alex) Yu, Ph.D., MCS

Re: Effect statistics for non-normality

2001-01-17 Thread Alex Yu
ative" and "quantitative" are a bit blurred. ******** Chong-ho (Alex) Yu, Ph.D., MCSE, CNE Academic Research Professional/Manager Educational Data Communication, Assessment, Research and Evaluation Farmer 418 Ariz

Re: probability definition

2001-03-01 Thread Alex Yu
have to be a frequentist, a frequentist does not have to be a positivist." ******** Chong-ho (Alex) Yu, Ph.D., MCSE, CNE Academic Research Professional/Manager Educational Data Communication, Assessment, Research and Evaluation Farmer 41

Re: On-line survey software

2001-06-22 Thread Alex Yu
I recommend FileMaker Pro for online survey. For more info, please visit: http://seamonkey.ed.asu.edu/~alex/computer/FMP/FMP.html Chong-ho (Alex) Yu, Ph.D., MCSE, CNE Academic Research Professional/Manager

EdStat: Triangular coordinates

2001-07-10 Thread Alex Yu
a hard time to follow how a point is determine with the three axes as a triangle. Is there any website/paper than can explain this? Thanks. Chong-ho (Alex) Yu, Ph.D., MCSE, CNE Academic Research Professional/Manager

EdStat: Probabilistic inference in resampling?

2001-07-15 Thread Alex Yu
probability within the reference set, then why do we care about the population variance? Any help will be greatly appreciated. Chong-ho (Alex) Yu, Ph.D., MCSE, CNE Academic Research Professional/Manager Educational Data

Re: likert scale items

2001-07-25 Thread Alex Yu
consult Velleman and Wilkinson (1993). from: http://seamonkey.ed.asu.edu/~alex/teaching/WBI/parametric_test.html Chong-ho (Alex) Yu, Ph.D., MCSE, CNE Academic Research Professional/Manager Educational Data Communication

Re: When does correlation imply causation?

2001-12-06 Thread Alex Yu
. Chong-ho (Alex) Yu, Ph.D., MCSE, CNE, CCNA Psychometrician and Data Analyst Assessment, Research and Evaulation Cisco Systems, Inc. Email: [EMAIL PROTECTED] URL:http://seamonkey.ed.asu.edu/~alex

Robust regression

2002-02-28 Thread Alex Yu
I know that robust regression can downweight outliers Should someone apply robust regression when the data have skewed distributions but do not have outliers? Regression assumptions require normality of residuals, but not the normality of raw scores So does it help at all to use robust

Re: Is there a test for causality?

2001-02-22 Thread Alex Yu
e a single dimension, theoretical construct are causally responsible for observed phenomena. Chong Ho (Alex) Yu, Ph.D. On Wed, 21 Feb 2001, G. Anthony Reina wrote: Is there a test that variable X causes variable Y? I was under the impression that the best statistics could do was correlation not

Re: Sample size question

2001-02-23 Thread Alex Yu
my weight never regresses to the mean. Chong-ho (Alex) Yu, Ph.D., MCSE, CNE Academic Research Professional/Manager Educational Data Communication, Assessment, Research and Evaluation Farmer 418 Arizona State University Temp

Logical positivism and quantitative methods

2001-04-08 Thread Alex Yu
attention. Chong-ho (Alex) Yu, Ph.D., MCSE, CNE Academic Research Professional/Manager Educational Data Communication, Assessment, Research and Evaluation Farmer 418 Arizona State University Tempe AZ 85287-0611 Email: [EMAIL

ANOVA and regression

2001-05-29 Thread Alex Yu
ANOVA can be expressed in regression and vice versa in a teacher's perspective. Thanks in advance. Chong-ho (Alex) Yu, Ph.D., MCSE, CNE Academic Research Professional/Manager Educational Data Communication, Assessment

Online data for psychology/education?

2001-06-11 Thread Alex Yu
. Chong-ho (Alex) Yu, Ph.D., MCSE, CNE Academic Research Professional/Manager Educational Data Communication, Assessment, Research and Evaluation Farmer 418 Arizona State University Tempe AZ 85287-0611 Email: [EMAIL PROTECTED] URL:http://seamonkey.ed.asu.edu/~alex