School performance incentives
a. are rewards within a school to teachers whose student test scores have increased the most
b. are rewards within a school to teachers whose students have improved their attendance and met other measurable goals
c. are rewards to all the teachers in a school where overall test scores have increased by a specified amount
d. were tried by most school districts during the 1920s and 1930s but rejected as too individualistic
C
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Which of the following are true statements? I. All bell-shaped distributions are symmetric. II. Bar charts are useful to describe quantitative data. III. Cumulative frequency plots are useful to describe quantitative data.
A. I only B. I and II only C. I and III only D. II and III only
If you were assigned the task of determining whether or not a group of children was engaged in associative play, what would you look for?
a. focus on a common goal and communicate about activity b. lack of direct interaction as each use similar materials c. sharing of materials but no engagement in a common activity d. use of similar toys but lack of interaction with each other
In the 21st-century skills movement, skills and knowledge are inseparable components of career success.
Answer the following statement true (T) or false (F)
.The one-sample z test is a hypothesis test used to test hypotheses
A. concerning a single population with a known variance. B. concerning at least one population. C. concerning the variance in a population. D. all of these.