The fatty layer of cells that is wrapped around many axons is called the
a. myelin sheath.
b. synaptic cover. c. dendritic wrap. d. terminal button. e. nerve.
a
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Which of the following is sometimes called a "before-after design?"
A. preexperiment B. one-shot case study C. one-group pretest-posttest D. posttest-only control group
The anthropologist whose research showed that definitions of masculinity and femininity are not biological given but are learned cultural constructs and therefore subject to change is ________
a. Mary Whiton Calkins b. Margaret Mead c. Christine Ladd-Franklin d. Margaret Floy Washburn
After finally being able to raise the head and chest, the infant is likely to develop next the motor skill of sitting up without support, according to the six identified motor milestones.
Answer the following statement true (T) or false (F)
A frequency method is used to quantify observations made in a study by ______.
A. dividing an observational period into equal intervals of time, then recording whether or not certain behaviors occur in each interval B. counting the number of times a behavior occurs during a fixed or predetermined period of time C. recording the amount of time or duration that participants engage in a certain behavior during a fixed period of time D. defining behavior