Is this a directional or nondirectional test?
A psychologist wants to know if the average length of courtship is different before a second marriage than before a first. Based on previous research, it is known that for courtship before first marriages, ? = 200 days. The psychologist collects a sample of 150 people who have just been married for a second time and finds in her sample a mean of 225 days and standard deviation of 25 days.
Ans: Because the researcher is examining if the average length of courtship is “different” before first marriages and second marriages, we need a nondirectional (two-tailed) test.
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When schools allow literature to be distributed, the same rules must apply to the distribution of religious literature
Indicate whether this statement is true or false.
What would a student's scores look like if they were considered academic underachievers?
a. Low achievement scores; High aptitude scores b. High achievement scores; Low aptitude scores c. Low achievement scores; Low aptitude scores d. None of the above
A four-year-old observes his brother kick the basketball after missing a shot and hears his father cuss after making a mistake. When he plays basketball and misses a shot, he kicks the ball and cusses. This is an example of:
a. direct modeling. b. indirect modeling. c. symbolic modeling. d. synthesized modeling.
Guidance talks:
a. are a good technique for establishing a sense of trust an safety in the classroom. b. are only appropriate in the primary grades. c. can lead to bullying behavior. d. should be used to get children to apologize for their aggressive actions.