When a problem resolves itself over time and the change is not just the result of the intervention, this is which alternative explanation or threat to internal validity?

A. history
B. maturation
C. attrition
D. mortality
E. none of the above


Answer: B

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Five-year-old Jawan is at the sand table. He tells you, “I can make rain with the holey cone.” The best example of a behavior reflection would be which of the following?

a. “Sounds like you love sand toys.” b. “You think that’s a holey cone. That’s called a funnel.” c. “Be careful your rain doesn’t get on the floor.” d. “You’re pouring sand through that funnel.” e. “You noticed the falling sand looks like rain.”

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Answer the following statement(s) true (T) or false (F)

Researchers believe that a family's adaptation to a child with a disability is closely linked to the level of support received from other family members as well as community resources.

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Teachers should lower their expectations and standards for students who come from culturally diverse backgrounds or a lower socio-economic status than their peers

Indicate whether the statement is true or false.

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Jeffery Arnett describes emerging adulthood as the period from ____ to _____

A. 16-18 years old B. 16-21 years old C. 16-25 years old D. 18-25 years old

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