The questionnaire consisted of two parts (A & B); the first part comprised 22 items and was directed to measure the overall attitude towards learning science after CL has been applied, while the second part contained 21 items and was directed to measure the students’ social and academic attitudes towards group work in science.
The items were rated on a 4-point Likert scale in an ascending order as follows:
• Strongly disagree - 1 point
• Disagree - 2 points
• Agree - 3 points
• Strongly agree - 4 points
The two parts of the questionnaire were designed to answer the question about the impact of heterogeneous groups by either the ability or nationality or both versus the homogeneous groups on the attitude of the nine graders towards learning science as well as the group work itself. Because of their negative nature, three of the questionnaire statements (14A, 15B & 19B) were reverse calculated by subtracting the given value from 4. Table 4 shows the different aspects and dimensions covered by the questionnaire that may formulate the learner’s attitude towards science and group work:
Sum
Count