Explain how the standard deviation is used to identify outliers in a dataset.
What will be an ideal response?
Ans: Researchers identify outliers in a dataset by determining the number of standard deviation units a score is from the mean of its distribution. The number of standard deviation units to identify an outlier can vary, but is generally set at 2, 2.5, or 3 standard deviation units above or below the mean.
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After reading a passage, a student is asked a question that calls for a fact directly from the paragraph. This is an example of an item that is assessing __________ comprehension
A) literal? B) ?critical C) ?affective D) ?lexical
Six-year-old Myla announces to her dad, "I don't eat vegetables or anything that's green." Her dad responds appropriately by:
a. allowing Myla to make her own food choices at dinner meals. b. not allowing Myla to eat any type of food until she eats her vegetable serving first. c. banning junk food in the home. d. involving Myla in selecting and preparing vegetables.
Students most commonly assume that learning is evidenced by
a. how much or how little they are enjoying the material under study. b. how much assistance they require as they master new material. c. their grades, particularly in relation to those of their peers. d. whether or not they advance to the next grade level each year.
The book can be seen as a toolbox of useful tools
A. True B. False