.10*g1</span></span>
<span><span class="st">     # slipping parameters</span></span>
<span><span class="st">     A1+A2+C3 ?=slip1*s1</span></span>
<span><span class="st">     A3 ?=.02*s1</span></span>
<span><span class="st">     # fix item intercepts</span></span>
<span><span class="st">     A1 | 0*t1</span></span>
<span><span class="st">     A2 | -.4*t1</span></span>
<span><span class="st">     F ~ 1    # estimate mean of F</span></span>
<span><span class="st">     F ~~ 1*F   # fix variance of F</span></sp