All of the following safety features must be considered when purchasing an infant crib except:
a. slats that are no more than 4 inches apart
b. a mattress that fits snugly against the crib sides
c. the ease of lowering the crib sides
d. no missing or cracked slats
c
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Routines offer predictability, and therefore safety, for many children, especially younger ones and those new to the classroom
Indicate whether the statement is true or false
Which of the following is a property of the standard deviation?Which of the following is a property of the standard deviation?Which of the following is a property of the standard deviation?
A. The standard deviation varies between –? and +?. B. Adding the same constant to each score will change the standard deviation by that constant. C. Multiplying each score times the same constant will change the standard deviation by that constant. D. Both adding the same constant to each score will change the standard deviation by that constant and multiplying each score times the same constant will change the standard deviation by that constant.
When an unplanned event occurs during the course of the study that might influence the dependent measure, this is a called:
a. History effect b. Maturation effect c. Testing effect d. Instrumentation effect
Elwood Cubberley discussed four school conditions. Which was not one of them?
a. Great school conditions b. Good school conditions c. Mixed conditions d. Pauper and parochial school conditions e. No action group