A researcher records scores on a parenting skills assessment among parents who are married and parents who are single before and again after a family training course. He compares parenting skills scores at both times for both types of parents. What type of quasi-experimental research design is described in this example?

Um no picture/answer choices would but false statement about voting would be all ages can vote

Ifound the exercise on the internet. attached is the list mentioned above.in order for a compound to be considered optically active it can't have any axis or plan of symmetry. the molecule  shouldn't also  be superimposable on its mirror image.with such considerations, the compounds that are optically active are: -third compound on the first image is optically active; -second and third compound from the second image are optically actives.