A review of research on the effectiveness of anti-bullying programs found that
A. all the different types of programs that have been used appear to be equally effective.
B. peer-based programs were more effective than other forms of programs.
C. short-term programs were just as effective as long-term ones.
D. bullying programs on average reduce bullying by 20 to 23%.
Answer: D
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The graphic organizers that are used to represent a continuous sequence of events with no beginning or ending are called
a. hierarchical b. conceptual maps c. sequential diagrams d. cyclical organizers
Calculate the variance.
A marketing researcher for a toothpaste company wants to know how often on average people brush their teeth per day. He obtains a sample of 25 adults. Their responses to his question are summarized in the following simple frequency distribution: X f 10 1 9 0 8 0 7 3 6 3 5 0 4 4 3 3 2 8 1 2 0 1
Who was Nim Chimpsky and what did he contribute to our understanding of language?
What will be an ideal response?
Choose all of the correct alternatives. Which of the following may NOT be used to present grouped data?
a. a simple frequency distribution b. a bar graph c. a frequency polygon d. a histogram e. an ogive