? 19. In a Solomon four-group design, if there is no effect of the pretest, A) the posttest scores will be different for all four groups. B) the pretest scores will be different for all four groups. the posttest scores will be the same in both control groups and in both experimental groups. the posttest scores will not be affected by the independent variable. 9 28. A technique to control for order effects without having all possible orders is known as . A) factor analysis B) factorial design C) Hawthorne Effect (D) Latin Square 30. An important reason NOT to use the strongest manipulation possible is that it may A) result in nonsignificant findings. B) cause a ceiling effect. 1 C) invalidate previous research already published in scientific journals. create a situation grossly different from a real world situation. (D)) 37. Some researchers choose to use more than one dependent measure in an experiment. When they do so, they need to be aware of all of the following except A) be aware of the order of presentation of the measures. B) consider counterbalancing the presentation of the measures. C) take the most important measures first. D) use the same number of independent variables