Question

1. A researcher is interested in the effects of birth order (first born versus later born) on achievement in a group of middle school boys and girls. The researcher believes that birth order has a differential effect on achievement in boys and girls. Data were collected on a standardized test taken by all students (both boys and girls) in the 8th grade (higher scores indicate greater achievement). The data are given below:   

Only child, boys: 93,92,94            Only child, girls: 88,89,90

First-born, boys: 93,92,94              First-born, girls: 88,89,90

Later-born, boys: 88,87,86             Later-born, girls: 74,75,73

1. Perform the appropriate analysis.
2. Describe the findings fully using appropriate follow-up test where necessary.
3. Was the researcher's hypothesis supported?

Please be as neat/organized as possible when showing your work

Answer 1

Let A: Boys, B: Girls

1: First Born 2: Later Born

Thus it kay concluded that the birth order has significant effect on achievement in boys and girls