Why might having participants sign informed consent statements (a statement
$$
\begin{array}{l|l|l|l}
\hline {\text { Question Format }} & \text { Nominal-Dichotomous } & \text { Likert-Type } & \text { Open-Ended } \\
\hline \text { Advantages } & & & \\
\hline \text { Disadvantages } & & & \\
\hline
\end{array}
$$
that they had been informed of the nature of the study, the risks and benefits of the study, the participants' right to refuse to be in the study, the participants' right to quit the survey at any point, and the participants' right to confidentiality) make a survey research study less ethical?