

TITLE: Homework Achievement Latent curve in regression line?

DATA:
  FILE IS HW latent 8-12.dat;
VARIABLE:
     MISSING ARE ALL (-999);
         NAMES ARE
     bytxrstd
     bytxmstd 
     bytxsstd 
     bytxhstd 
     parocc 
     HW_10 
     HW_12 
     eng_12 
     math_12 
     sci_12 
     ss_12 
     Female 
     byfaminc 
     bypared 
     Minority;



USEVARIABLES ARE 
    Minority
    BYPARED	
    BYFAMINC	
    PAROCC	
    BYTXRSTD	
    BYTXMSTD	
    BYTXSSTD	
    BYTXHSTD	
    HW_10	
    HW_12	
    ENG_12	
    MATH_12	
    SCI_12	
    SS_12;

ANALYSIS:
    TYPE=RANDOM;
    ALGORITHM=INTEGRATION;

MODEL:        
   

    FAMBACK BY 
        PAROCC
        BYPARED	
        BYFAMINC;	

    PREVACH BY
        BYTXRSTD	
        BYTXMSTD	
        BYTXSSTD	
        BYTXHSTD;	

    HW BY
        HW_10
        HW_12;	

    GRADES BY
        ENG_12	
        MATH_12	
        SCI_12	
        SS_12;

    BYTXRSTD	WITH ENG_12;
    BYTXMSTD	WITH MATH_12;	
    BYTXSSTD	WITH SCI_12;
    BYTXHSTD	WITH SS_12;	
    Minority    WITH FAMBACK;

    PREVACH ON FAMBACK Minority;
    GRADES ON PREVACH HW;
    HW ON PREVACH FAMBACK Minority;
    HW_Sq | HW XWITH HW;
    GRADES on HW_Sq;



OUTPUT:  SAMPSTAT STDYX RESIDUAL TECH1 TECH8; 

