Which of the following is true of any one-sample experiment?
a. We must know the population mean under the same condition of the independent variable as the one being tested.
b. We must know the population mean under some condition of the independent variable other than the one being tested.
c. We must know the sample mean under the condition of the independent variable being tested, but we do not need to know the population mean.
d. We must know the sample mean under the condition of the independent variable being tested and under some other condition of the independent variable.
B
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In the card-sorting task in which children first sort on the basis of shape and then have to shift to sorting on the basis of color (or vice versa), there is a transition in ability to switch rules between ages 3 and 4 years. Using near-infrared spectroscopy (NIRS), researchers found that these behavioral improvements were associated with a rise in brain activity in the __________.
A. sensorimotor cortex B. visual cortex C. motor cortex D. frontal lobes
Internships must be well-organized in order to provide benefit to the student intern.
Answer the following statement true (T) or false (F)
Alcohol is a depressant
Indicate whether the statement is true or false
In an analysis of variance, if the null hypothesis is false, then
A) the variation between sample means reflects the variation within the populations as well as the variation between the population means. B) the within-groups variance is significantly larger than the between-groups variance. C) the variance within each sample is larger than if the null hypothesis were true. D) the variance between sample means is no greater than the variance within the population with the largest variance.