What is the Bonferroni adjustment? What would the Bonferoni adjustment be for a study with four groups for which a researcher decided to use t tests?
What will be an ideal response?
The Bonferroni adjustment is a means of setting a more stringent alpha level in order to minimize Type I errors. It is calculated with the following formula .05/c, where c = the number of comparisons. For a study with four groups, the Bonferroni adjustment would be .05/4 = .0125 . Thus, a comparison would not be considered significant unless the t score was large enough that p ? .0125.
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Condolence letters are examples of useful commemorative activities when they
a. come from individuals who are known to the bereaved person b. share some memory of the life or legacy of the person who died c. turn the attention of the bereaved person to the life that lies ahead d. include a collage that symbolizes the life of the deceased e. encourage the bereaved person not to focus on what has been lost
Are there any effective preventive therapies for tension-type headaches (TTH's)? What about treatments?
What will be an ideal response?
Compared to the sentence given to an adult for the same crime, the average sentence for a juvenile is _______________
A) only slightly less B) much less C) the same D) greater
The cause of oppositional defiant disorder is
a. preterm birth. b. poor diet. c. poverty. d. unknown.