⟩ Which of the following is an example of map generalization?
1. Coordinate transformation
2. Buffering
3. Polygon overlay
4. Polygons coordinate thinning
Polygons coordinate thinning
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You are conducting a study looking at the group differences in reading ability between three groups of children, all receiving different remedial assistance. You decide that ages will co vary with reading ability, so you do ANCOVA. There are 40 children in each of the three groups. The mean reading score for the whole sample is 42.69. The mean for group 1 is 46.92, for group 2 the mean is 41.89, and for group 3 the mean is 41.05. What is the grand mean?
Refer to the example from question 2 again. If you were conducting your analysis in SPSS, what would the fixed factor be?
The adjusted group mean for the DV has been adjusted to standardize it with the other groups based on the grand mean for the covariate.
Look at the output on p. 470. What is the overall effect of age?
Consider the output displayed on p. 470. What is the F-Value associated with the effect of age?
Consider the study in question 2. Which of the below questions would be pertinent to this analysis?
What would the degrees of freedom be if you were reporting the results of the effect of Age from the output on p. 470?
Using the example in the text book (which begins on p. 471), which variable is the covariate in this study?
Look at the output on p. 470. What is the overall effect of the grouping?
What are the two main reasons for using ANCOVA?
