  <td><p>Simulation of the GDINA model</p></td>
      </tr><tr><td>
          <p><code><a href="sim_model.html">sim_model()</a></code> </p>
        </td>
        <td><p>Simulate an Item Response Model</p></td>
      </tr><tr><td>
          <p><code><a href="skill.cor.html">skill.cor()</a></code> <code><a href="skill.cor.html">skill.polychor()</a></code> </p>
        </td>
        <td><p>Tetrachoric or Polychoric Correlations between Attributes</p></td>
      </tr><tr><td>
          <p><code><a href="skillsp