Answer the following statement(s) true (T) or false (F)
One reason the denominator for sample variance is (n – 1) is because this makes it an unbiased estimator of the population variance.
Ans: T
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Regarding education in America during the 1700s, which of the following statements is FALSE?
a. Congress enacted legislation during this time period that set aside public land for schools. b. The Franklin Academy was the first academy, and it was open only to boys. c. This period saw the establishment and increased use of academies rather than Latin grammar schools. d. Public schoolhouses during this period were typically one-room/one-teacher, with children learning at their own pace. e. Curriculum during this time expanded to include more practical topics, as well as electives.
Six-year-old Jack has recently learned to appreciate the value of money, so his father assigns him some simple housekeeping chores to be performed throughout the week. He tells Jack that completion of these chores will earn him an allowance of one dollar every Saturday. Jack rarely completes his chores. From an operant conditioning perspective, which one of the following is most likely to be the
reason why Jack is not doing his chores? a. There is a delay in reinforcement. b. Reinforcement is not contingent on the desired response. c. Money is rarely an effective reinforcer for people. d. The "reinforcer" is presented before the response.
In general, many behavior rating scales have been criticized for
a) using the teacher as the rater b) their lack of educational relevance c) documenting observable behavior d) using parents as raters
An APA style “level 5” heading is:
a. Centered, boldface, uppercase and lowercase heading b. Indented, boldface, lowercase paragraph heading ending in a period c. Indented, boldface, italicized, lowercase paragraph heading ending in a period d. Indented, italicized, lowercase paragraph heading ending in a period