7.5 Data Collection Procedure
Initially the two groups were pre-tested. They had eight periods of mathematics each week and a period was 40
minutes. This means that a total of 320 minutes was used each week to administer the treatment. The focus of the
treatment was on the use of performance assessment test items in learning mathematics. Six weeks were used to
administer the treatment. After the treatment the two groups took a post-test.
7.6 Data Analysis
The independent samples t-test was used to test hypothesis 1 and the paired sample t-test was used to test