 0 and the other half will be group = 1 (Default)</span>
<span class='co'># The average ability for persons with group = 1 will be 0.5 logit higher.</span>
<span class='va'>data.lrm</span> <span class='op'>&lt;-</span> <span class='fu'>simEIRM</span><span class='op'>(</span>nitem <span class='op'>=</span> <span class='fl'>10</span>, nperson <span class='op'>=</span> <span class='fl'>1000</span>, group.effect <span class='op'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/c.html'>c</a></span><span