A business analyst wanted to predict the success of a government intervention in failing firms, predicted by a categorical variable, ‘duration of financial difficulty prior to the intervention’. The predictor variable had four categories: less than 6 months, 6–12 months, 1–2 years, more than 2 years. They needed to code these variables into dummy variables for the regression using less than 6 months as their control category. Which of the following represents the correct coding scheme?
A.
B.
C.
D.
Answer: A
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When we say that intelligence is a characteristic that is not very deeply canalized, we mean that
A. whatever genes are inherited will determine the eventual outcome in terms of intelligence. B. the estimate we get of an individual's intelligence will vary substantially from one time of testing to another. C. the closer the genetic relationship between two individuals, the more similar their IQ scores will be. D. whatever the genetic starting point, the environment will have a substantial impact on the eventual outcome.
The trend over the last few years is for adolescents with high-incidence disabilities to spend more time in:
a. general education classrooms b. special education classrooms c. community-based instruction d. in-school suspension
What would be a signature characteristic of a van Hiele level 2 activity?
a) Students can use dot or line grids to construct tessellations. b) Students can classify properties of quadrilaterals. c) Students can use logical reasoning about properties of shapes. d) Students can prepare informal arguments about properties of shapes.
Which one of the following statements best describes a quasi-experimental study?
a. Participants are randomly assigned to treatment and control groups. b. Treatment and control interventions are administered to pre-existing groups. c. Researchers examine children's behaviors in educational settings rather than in laboratories. d. Researchers are less concerned about the validity and reliability of their measures than is true in experimental studies.