MVC RadioButton: Modelbinder passing incorrect hidden values?

<input id="response.Index" name="response.Index" type="hidden" value="1" />
<input id="response[1].choiceID" name="response[1].choiceID" type="hidden" value="1" />
<input id="response[1].text" name="response[1].text" type="radio" value="yes" />
<label>yes</label>

<input id="response.Index" name="response.Index" type="hidden" value="1" />
<input id="response[1].choiceID" name="response[1].choiceID" type="hidden" value="2"/>
<input id="response[1].text" name="response[1].text" type="radio" value="no" />
<label>no</label>