According to research, a perception of competence seems to be unrelated to motivation
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False
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Selecting an appropriate method for calculating interobserver reliability will depend on the complexity of the target behavior being observed
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The following four junior high school science teachers are teaching the concept atom to their students. From Piaget's perspective, some of the students in each classroom are in the formal operations stage and others are at the concrete operations stage. In which classroom are the concrete operational students most likely to have difficulty understanding what an atom is like?
A) Mr. Armani lets students touch and manipulate concrete models of various atoms. B) Mr. Bendetti lets students look at the same concrete models that Mr. Armani has used. C) Mr. Carmen verbally describes how different elements are made up of different numbers of neutrons, protons, and electrons. D) Mr. Davidson has students role-play being neutrons, protons, and electrons. The "neutron" and "proton" students huddle together in the middle of the room, and the "electrons" move around them.
Mrs. Jones wanted to compare her students' math scores on two tests, each of which had 40 items. She found that for Test A, the mean was 20 and the standard deviation was 4, and for Test B, the mean was also 20, but the standard deviation was 6. Which of the following statements is true?
a) The distribution of scores for Test B is positively skewed. b) The scores for both tests are normally distributed. c) There is more variation in the distribution of the scores for Test B than in Test A. d) The standard error is the same for both tests because they both tests have 40 items.
Down syndrome results in severe and profound levels of intellectual disabilities
Indicate whether the statement is true or false.