A set of n = 5 pairs of X and Y scores has ?X = 15, ?Y = 5, and ?XY = 10. For these data, the value of SP is ____
A) -5?
B) ?5
C) ?10
D) ?25
A
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You have designed an experiment to test a new drug. You prepare the injection doses of the drug and a placebo and label them with different alphabet letters. Then, you hire research assistants to give the injections and to collect data from the participants. These research assistants as well as the participants will not know which injection is the drug or which is the placebo or whether a
participant is in the experimental or the control group. You have a. created a placebo effect. b. designed a single-blind experiment. c. designed a double-blind experiment. d. created a self-fulfilling prophecy.
The ingestion of _____ plays a role in some Native American religious practices.
A) psilocybin B) peyote C) LSD D) ketamine
In Pavlovian conditioning, contiguity usually refers to the ________
a. time between CS and US b. interval between CS-US trials c. space between CS and US d. interval between training sessions
The core knowledge hypothesis suggests that:
A) infants have inborn abilities for understanding some key aspects of their environment. B) children do not develop true abstract thinking until after puberty. C) children must first develop an essential set of cognitive skills before they can develop abstract thinking. D) children learn through a process of accommodation and assimilation.