Researchers have found it difficult to decipher the effects of individual drugs on prenatal development. Women may use more than one drug, have poor nutritional habits and lack good prenatal care. In additional, there are ethical constraints on the types of research that can be conducted. Therefore, information on the effects of drugs on prenatal development is

Question

Quizplus · Accepted Answer

The information is correlational because researchers cannot ethically conduct experiments on pregnant women, so they rely on observational studies that identify associations rather than causations.

Researchers Have Found It Difficult to Decipher the Effects of Individual