What happens when a null hypothesis has been accepted and the null hypothesis is really false?
a. a Type II error
b. power
c. a null error
d. a Type I error
Ans: a
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During the first year of life, infants spend a great deal of time ___________ and ___________ to the world around them
Fill in the blank(s) with correct word
One of the challenges with doing a cross-sectional study is that ______.
a. you must have groups that cover the entire age range from infancy through adolescence b. you must be certain that the different age groups you use are as similar to each other as you possibly can make them c. it will be hard to get the statistical tools that you need to adequately analyze your data d. your findings may no longer be relevant by the time your study is completed
Ms. Casella has scheduled three days for students' persuasive speeches in her high school class.Which of the following practices is most likely to improve reliability in evaluatingher students' oral presentations?
a. Rate the presentations on a 100-point scale to allow a wide range of scores. b. Focus raters' attention on a few dimensions of the presentation. c. Increase variability of scoring by incorporating many criteria for the presentations. d. Invite colleagues to rate the presentations and use a different rater each day.
Define the term public education, and list the six themes of public education's mission
What will be an ideal response?