In a __________ study, neither the experimenter nor the participants know who has obtained the real treatment

The "Conditional Reasoning Test" could theoretically be used by employers to detect _____ in employees

a. mental illness b. success potential c. aggressive tendencies d. high intelligence levels

Compared to neonates, toddlers sleep ____ fewer hours per day

a. 6–7 b. 5–6 c. 4–5 d. 3–4