For the Experimental Group II, which received shaping, only two sessions of interaction were held. These were on the first day the researcher went to the school for the starting of the treatment and the last day of the twenty (20) days of the treatment when she went to thank the research assistants and to encourage and know how the students (the 30 latecomers) faired during the course of the treatment.
During the period of treatment, the subjects were handled by the research assistants. The research assistants were already trained to monitor and reinforce the subjects day by day for the twenty (20) days according to the level of improvement by each subject. The control group was left in the hands of the school guidance counsellor who gave the usual group counselling.
Control of Extraneous Variables
In studies of this nature, there is the likelihood of some extraneous variables, which if not checked, can pollute the study and twist the findings of the study. To check and reduce the polluting effects of such extraneous variables, some measures were used. These included: -
1. Hawthorne Effect
The presence of the researcher may make the subjects fake their late coming behaviour, thereby polluting the study. In order to control this, the researcher had to ignore the first two late coming behaviour because with time the subjects will return to their normal way of behaviour, having overcome the influence of the presence of the researcher.
2. Level of Lateness
It was possible for the difference in the level of lateness among the latecomers used in this study to pollute the findings of the study. So, the researcher had to take care of this by making sure that all categories of late coming were well represented in the three groups.
3. Use of Analysis of Co-Variance (ANCOVA)
It might be argued that in spite of these sources of control for extraneous variables, some polluting effects could have proved difficult to control in a way. Therefore, for such experimental and research leakages, analysis of co-variance was used in testing the null hypotheses on the effectiveness of the treatment models, thereby isolating these pollutants as co-variants.
Method of Data Analysis
The data collected for this study was put in table. The points for each student were determined and were used to provide answers to the research questions, while ANCOVA was used to provide answers to the null hypotheses.