Nina has an unusual habit of eating raw rice grains. her brother says that this behavior has been associated with pica, a disorder characterized by the urge to eat nonfood substances. nina dismisses her brother’s comment saying that she does not have a disorder. according to the stages of change model, nina is most likely in

Nina is most likely in the precontemplation stage.

Explanation:

An individual tends to go through a series of stages in order to make a change and stick to it. The model is round, which means that change is rarely lineal and it is possible to go back to a previous stage or star over, for example.

The Precontemplation stage is the first one; it occurs when an individual has not yet identified a problem or does not yet think he/she needs to make a change.

Nina dismisses her brother's comment by saying she does not have a disorder so she is in this first stage.

answer; researchers typically cannot control people's sexual behaviors as would be necessary in an experiment;

can you explain it better