How does the passage recommend calculating the number of supervisees a supervisor can effectively handle? Group of answer choices It suggests that supervisors can handle an unlimited number of supervisees. It proposes a fixed number, such as 10 supervisees, for all supervisors. It recommends assessing the supervisor's capacity based on their work hours and other responsibilities. It doesn't provide any guidelines for calculating this number.The only source of variability whose impact is intentional is the ______. Group of answer choices independent variable dimensional quantity organism extraneous variable