Skeletal age is determined by __________ to see the extent to which soft, pliable cartilage has hardened into bone
A) X-raying the long bones of the body
B) measuring the circumference of the skull
C) X-raying the spinal cord and teeth
D) measuring the length of the arms and legs
Answer: A
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These are studies that examine more than one independent variable to determine the separate and combined effects of the independent variables on the dependent variable.
What will be an ideal response?
Because of her insomnia, Mia's physician prescribed sleeping pills to help her fall asleep. Over time, Mia has had to increase the dosage she takes in order to fall asleep, indicating that she has developed a(n) _____ the medication.
A) adverse reaction to B) withdrawal syndrome for C) tolerance for D) internal neural synthesis for
A person is less likely to conform if he or she
a. has low needs for structure or certainty. b. is anxious and low in self-confidence. c. lives in a culture that emphasizes group cooperation. d. is concerned with the approval of others.
Why and how must researchers pay close attention to variables when measuring developmental attributes and behaviors?
What will be an ideal response?