Under what circumstances is the phi-coefficient used?
A) ?when one variable consists of ranks and the other is regular, numerical scores
B) ?when both variables consists of ranks
C) ?when both X and Y are dichotomous variables
D) ?when one variable is dichotomous and the other is regular, numerical scores
C
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Which of the following is LEAST common for a 1½-year-old toddler?
a. Linking words into phrases and short sentences b. Combining a word with a gesture c. Communicating by a gesture alone d. Using a word without asking for something
Some things seem to be consistent across all the different forms that obsessive-compulsive disorder takes. These include __________.
A. a tendency to have an aggressive, impulsive personality B. an overwhelming fear that something terrible will happen to the person or to others, for which they will be responsible C. a strong resistance to depressive and other mood disorders D. an inability to see that the compulsive actions they engage in are unnecessary and ridiculous
In a negatively skewed distribution, the mode is _____ the median and _____ the mean
a. greater than; greater than b. less than; less than c. greater than; less than d. less than; greater than
Identify and briefly describe the five steps (discussed in the textbook) that people pass through in determining whether and how to render help in an emergency situation. Also identify the key obstacles (things that might prevent people from providing needed help) at each stage
What will be an ideal response?