Message/Author 

SherrieW posted on Sunday, August 21, 2011  2:51 pm



I need help to plot continuous latent variable interactions. I used LMS in Mplus to find the interaction: ANALYSIS: type = missing; TYPE = RANDOM; ALGORITHM = INTEGRATION; Model: m1 by a1 a2 a3 a4; m2 by a5 a6 a7 a8; m3 by a9 a10 a11 a12; m4 by a13 a14 a15 a16; m5 by a17 a18 a19 a20; m1xiv  m1 XWITH iv; dv on iv (a1); dv on m1xiv (a3); dv on covariates; dv on m1 m2 m3 m4 m5; And created constraints to probe the interaction: MODEL CONSTRAINT: NEW(ss1ss10); ss1=a1+a3*1; ss2=a1+a3*2; ss3=a1+a3*3; ss4=a1+a3*4; ss5=a1+a3*5; ss6=a1+a3*10; ss7=a1+a3*15; ss8=a1+a3*20; ss9=a1+a3*25; ss10=a1+a3*30; But, now, how do I plot the interaction? Where do I find this information? 


Take a look at how the interaction is expressed on slide 164  for the Topic 3 handout of 5/17/2010. 

Sher posted on Tuesday, August 23, 2011  10:45 am



How do I find the mean of the interaction (z) and plus or minus one standard deviation around the mean of z? 

Sher posted on Tuesday, August 23, 2011  5:32 pm



Correction: How do I find the mean of the moderator (z) and plus or minus one standard deviation around the mean of z? 


For an observed moderator, do a Type=Basic run. 

Sher posted on Tuesday, August 23, 2011  6:16 pm



The moderator is latent. Is there a way to find the mean, SD for a latent moderator? 


See TECH4. 

Sher posted on Wednesday, August 24, 2011  2:42 pm



I tried TECH4 and received the following message: *** WARNING in OUTPUT command TECH4 option is not available for TYPE=RANDOM. Request for TECH4 is ignored. 


Please send the full output and your license number to support@statmodel.com. 

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