You begin a study with primary school children. You show them a box which contains 3 yellow, 2 black, 4 white and 3 clear buttons. Two buttons are taken one after the other at random from the box. What is the probability that both buttons are black?
A. 1/6
B. 1/16
C. 1/60
D. 1/66
Answer: D
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The technique used to find the relationship between curvilinear variables is called
a. correlation ratio. c. multiple correlation. b. tetrachoric correlation. d. partial correlation.
This measure of central tendency takes into account the least amount of information about the values in a sample
a. mode b. median c. mean d. confidence interval
In which one of these cases would a temporary suspension from the job be appropriate?
A. Teacher was tardy twice in one month. B. Teacher bought an alcoholic beverage for a student. C. Teacher argued with a parent about a student's grade. D. Teacher claimed to be ill but was actually on a trip.
Mr. Williams is the fourth-grade teacher across the hall from you. He has only been teaching for three years and has just learned that he is to have a student with autism spectrum disorder in his class beginning in January. As of yet, the student's file detailing the disability has not arrived at the school, but Mr. Williams is very concerned about what to expect from this new student. Write Mr
Williams an explanation that describes common characteristics of students with autism spectrum disorder so that he might know better what to expect. What will be an ideal response?