Advanced Methods and Models in Behavioral Research – 2009/2010 Advanced Methods and Models in Behavioral Research Chris Snijders Uwe Matzat Gerrit Rooks.

Advanced Methods and Models in Behavioral Research – 2009/2010

Advanced Methods and Models in Behavioral Research

ToDo:Studyweb!

Enroll in 0a611

Advanced Methods and Models in Behavioral Research – 2009/2010

The methods package

• MMBR (6 ects)– Graziano: algemeen: vraagstelling, betrouwbaarheid,

validiteit etc– Field: SPSS: factor analyse, multiple regressie, ANcOVA,

sample size etc

• AMMBR (3 ects) - Field (deels): logistische regressie - literatuur via website:

conjoint analysis multi-level regressie

Advanced Methods and Models in Behavioral Research – 2009/2010

Models and methods: topics

• t-test, Cronbach's alpha, etc• multiple regression, analysis of (co)variance and

factor analysis

• logistic regression• conjoint analysis / repeated measures

• Stata naast SPSS• Naar nieuwe vragen• Oefenen (een beetje) met data verzameling

Achterliggende gedachte: nu moet je het zelf kunnen

Advanced Methods and Models in Behavioral Research – 2009/2010

Methods in brief (1)

• Logistic regression: target Y, predictors Xi.

Y is a binary variable (0/1).

- Why not just multiple regression?- Interpretation is more difficult- goodness of fit is non-standard- ...

Advanced Methods and Models in Behavioral Research – 2009/2010

Methods in brief (2)

• Conjoint analysis

Underlying assumption: for each user, the "utility" of a product can be written as

U(x1,x2, ... , xn) = c0 + c1 x1 + ... + cn xn

-10 Euro p/m- 2 jaars abo- toestel gratis- ...

Hoe aantrekkelijk vindje dit voorstel?

Coming up with new ideas (3)

Advanced Methods and Models in Behavioral Research – 2009/2010

“More research is necessary”

But on what?

“More research is necessary”

But on what?

YOU: come up with sensible new ideas, given previous researchYOU: come up with sensible new ideas, given previous research

Stata next to SPSS

Advanced Methods and Models in Behavioral Research – 2009/2010

• It’s just better (faster, better written, more possibilities, better programmable …)

• Multi-level regression is much easier than in SPSS

• It’s good to be exposed to more than just a single statistics package (your knowledge should not be based on “where to click” arguments)

• More stable (I think)

• Supports OSX as well… (anybody?)

But …

• Output less “polished”

• It takes some extra work to get you started

• The Logistic Regression chapter in the Field book uses SPSS (but still readable for the larger part)

• (and it’s not campus software, but subfaculty software)

• Installation …

Advanced Methods and Models in Behavioral Research – 2009/2010

Advanced Methods and Models in Behavioral Research – 2008/2009 9

To Do

• enroll in studyweb (0a611)

• Read the Field chapter on logistic regression

Advanced Methods and Models in Behavioral Research

Advanced Methods and Models in Behavioral Research – 2009/2010