Reading comprehension strategies of elementary school children. An investigation of the reading comprehension strategies employed by good and average elementary school readers was the topic of research published in The Reading Matrix (April 2004). Both good and average readers were recruited on the basis of their scores on a midterm language test. Each group was evaluated on how often its members employed each of eight different reading strategies. The accompanying table (saved in the READSTRAT file) gives the proportion of times the reading group used each strategy (called the Factor Specificity Index, or FSI score). The researchers conducted a Wilcoxon signed rank test to compare the FSI score distributions of good and average readers. a. State H0 and Ha for the desired test of hypothesis. b. For each strategy, compute the difference between the FSI scores of good and average readers. c. Rank the absolute values of the differences. d. Calculate the value of the signed rank test statistic. e. Find the rejection region for the test, using α = .05. f. Make the appropriate inference in the words of the problem.
| FSI Scores |
|
Strategy | Good Readers | Average Readers |
Word meaning Words in context Literal comprehension Draw inference from single string Draw inference from multiple string Interpretation of metaphor Find salient or main idea Form judgment | .38 .29
.42
.60
.45
.32
.21 .73 | .32 .25
.25
.26
.31
.14
.03 .80 |
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