Question
A school psychologist is examining the development of children's reading skills from ages 4 to 6. The psychologist selected three different groups of children from
A school psychologist is examining the development of children's reading skills from ages 4 to 6. The psychologist selected three different groups of children from classrooms at Smith Central School, one group for each age. The children are placed in a language skills program aimed at building reading comprehension and phonetic awareness, after which a reading skills assessment test is administered to each child. The test is scored on a 10-point scale. The following data show the results:
Age 4 | Age 5 | Age 6 | |
---|---|---|---|
4 | 1 | 0 | G = 43 X2 = 193 |
6 | 4 | 2 | |
3 | 5 | 0 | |
7 | 2 | 2 | |
5 | 2 | 0 | |
T = 25 | T = 14 | T = 4 | |
SS = 10 | SS = 10.8 | SS = 4.8 |
Use an analysis of variance witha = .05 to determine whether these data indicate any significant mean differences among the treatments (age groups). Remember to 1) State the null hypothesis, 2) Show all of your calculations, 3) Make a decision about your null hypothesis, 4) Make a conclusion including an APA format summary of your findings (include a measure of effect size if necessary), and 5) Indicate what you would do next given your findings.
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