Re: GLM vs. ANOVA

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

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

. 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

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

. 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

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

. 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

? 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

_='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

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

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

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

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?

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

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?

. 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

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?

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

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

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

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?

. 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