Research designs that have several of the key features of randomized experimental designs, such as pre-post measurement and treatment-control group comparisons, but lack random assignment to a treatment group are called _______________ designs
Fill in the blank(s) with correct word
quasi-experimental
quasi experimental
Psychology
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With respect to normal cognitive development, object permanence takes place during the second half of Piaget's concrete operational stage
a. true b. false
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Which of the following is the most common cause of death in adults between ages 25and 44 in the U.S.?
a. AIDS b. cancer c. accidents d. heart disease
Psychology