Which of the following designs would probably be highest in internal validity?
a. Y1 X Y2
b. X Y2
--- Y2
c.
(R) X Y2
(R) --- Y2
d.
Y1 X Y2
Y1 --- Y2
C
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Who might make up each layer of the ecological system?
What will be an ideal response?
A researcher wishing to correlate two variables collects data from 50 people. In this analysis, the degrees of freedom is equal to ______.
a. 50 b. 49 c. 48 d. 47
In IBM SPSS, what does clicking on this icon do?
A. Show you the variables in the data editor and summary information about each one. B. Split the data file into three parts. C. Take you to a particular case. D. Enable you to select particular cases.
Executive function involves:
A) working memory, self-control, and mental flexibility
B) problem-solving, persistence, and concepts
C) social interaction, neuronal networks, and imitation
D) regulation, memory, and persistence