Comment by franciscop

No problem! You also have a label repeated, which makes the first item to select the second radio-button:

    <input type="radio" id="factor-weight-4" name="score" value="4">
    <label for="factor-weight-3">super important</label>
    <br>
    <input type="radio" id="factor-weight-3" name="score" value="3">
    <label for="factor-weight-3">pretty important</label>