An experimenter determined whether children would be assigned to an intervention group or a control group based on the school they attended. This approach may have introduced systematic variation that had nothing to do with the intervention, called , due to non-random assignment.

Marie places her house plant near a window. the sun shines in the window, but her plant is slightly out of reach for the sun. what will marie's plant do to survive

Brian has been working for a few years now and has saved a substantial amount of money. he now wants to invest 50 percent of his savings in a bank account where it will be locked for three years and gain interest. which type of bank account should brian open?

Which courtroom participant is james in the given scenario? josh, the accused, is undergoing a criminal trial. mr. kent, josh’s neighbor and college professor, has been called upon to vouch for josh’s good conduct, academic performance, and likeable behavior. mr. kent is thus playing the role of a in the courtroom.