Based on questions (1-4), the following three questions were branched:
1. Are there any statistically significant differences in the students’
achievement in the Pre-test and Post-test?
2. Are there any statistically significant differences in the students’
achievement due to the group type?
3. Are there any statistically significant differences in the students’
attitude due to the group type?
Hypothesis Formulation
The researchers suggest that the different nationalities of the students
present in the classroom along with their diverse abilities should play a
critical role in their performance in the national and regular school tests as
well as in forming their personalities, experiences and consequently their
attitudes towards the school subjects. Therefore, the following hypotheses
were formulated and tested:
1- There are statistically significant differences in the students
achievement means in the pretest and posttest at α = 0.05.
2- There are statistically significant differences in the students
achievement means at α = 0.05 due to the group type.
3- There are statistically significant differences in the students attitudes
towards learning science at α = 0.05 due to the group type.
Objectives
1- To test if the use of homogeneous versus heterogeneous group
would affect the achievement of nine grader high achievers in
science in Hamza school.
2- To test if the use of homogeneous versus heterogeneous group
would improve the achievement of nine grader low and medium
achievers in science in Hamza school.
3- To test if the use of homogeneous versus heterogeneous group
would affect the attitude of nine grader high achievers towards
science in Hamza school.