When does sampling error occur?
a. When a sample statistic is not equal to the population parameter as a result of nonchance factors
b. When a sample statistic is not equal to the population parameter as a result of chance factors
c. When there has been an error in calculating the standard error of the mean
d. When there has been an error in calculating the sample mean
b
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What is the first and shortest stage of the prenatal period called?
A. fertilization stage B. germinal stage C. conception stage D. embryonic stage
For a population with a standard deviation of ? = 10, what is the z-score corresponding to a score that is 5 points below the mean?
a. z = 0.50 c. z = –0.50 b. z = 1.00 d. z = –1.00
A sample of n = 9 individuals is selected from a population with ? = 60 and ? = 6, and a treatment is administered to the sample. After treatment, the sample mean is M = 63 . What is the value of Cohen's d for this sample?
a. 0.33 c. 1.00 b. 0.50 d. 2.00
Dialectical behavior therapy has been shown to be quite useful for the treatment of personality disorder
a. dependent b. borderline c. schizoid d. obsessive-compulsive