span>
<span><span class="co">#******************</span></span>
<span><span class="co">#*** Model 2: Rasch Model with first six items</span></span>
<span><span class="va">lavmodel</span> <span class="op">&lt;-</span> <span class="st">"</span></span>
<span><span class="st">     F=~ a*A1+a*A2+a*A3+a*A4+a*B1+a*B2</span></span>
<span><span class="st">     F ~~ 1*F</span></span>
<span><span class="st">            "</span></span>
<span><span class="co"># convert syntax and estimate model</span></span>
<span><span 