Random assignment is important for ______ variables in terms of the order in which participants receive the levels of the variable to control for possible order effects of the different levels of the variable.
a. independent
b. dependent
c. between-subject
d. within-subject
Ans: D
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A(n) _______________ variable in an experiment is the condition that is manipulated by the researcher
Fill in the blank(s) with correct word
Memory is
a. a scientific term. b. a convenient term. c. a proven fact. d. a trait specific to humans.
When a VR schedule of reinforcement is in place, the reinforcer occurs after the
a. final response in a fixed number of responses (for example, 5). b. final response in a variable number of responses. The schedule is designated by the average number of responses that is required (for example, 5 responses). c. first response after a variable length of time has transpired. The schedule is designated by the average length of time that is required (for example, 5 minutes). d. first response after a constant interval of time (for example, 5 minutes) has occurred.
The median and mode are useful when distributions are skewed or bimodal.
Answer the following statement true (T) or false (F)