Ms. castella uses portfolio assessment in language arts. students collect their best work throughout the year and review their portfolios at the end of each grading period. ms. castella instructs students to look for ways their writing has improved each grading period by comparing their recent best work to previous work. what aspect of the target model is she using to increase student motivation to learn?

True of false: the chancellor of a university has commissioned a team to collect data on students' gpas and the amount of time they spend bar hopping every week (measured in minutes). he wants to know if imposing much tougher regulations on all campus bars to make it more difficult for students to spend time in any campus bar will have a significant impact on general students' gpas. his team should use a t test on the slope of the population regression.