One advantage of a sequential research design is that ________. Group of answer choices it takes less time to complete than a longitudinal study researchers can find out whether cohort effects are operating by comparing participants of the same age who were born in different years if the longitudinal and cross-sectional outcomes differ, researchers can be especially confident about their findings it is especially useful for studying the strategies children use to acquire new knowledge in reading and scienceIn an experimental design, A) the events and behaviors are divided into two types: independent and dependent variables. B) investigators are unable to control for participants' characteristics that could reduce the accuracy of their findings. C) researchers infer cause and effect by directly controlling or manipulating changes in the dependent variable. D) researchers gather information on individuals, generally in natural life circumstances, and make no effort to alter their experiences.