The instrument used for data collection was Vocational Interest Inventory (VII) of Bakare (1974). The VII consisting of 100 items grouped into 10 interest areas. However, a likert-type graded response to each statement was used. Scores on the interest areas are calculated and plotted on an interest profile as vocational maturity of students based on their interest.
Validation of the Instrument
Bakare had attested to the validation of the instrument. Several studies of relationships between Bakare’s VII and job satisfaction are criterion that supports its validity. The Kuder-Richardson technique has been used to determine the reliability of the inventory. Findings are in the 70s and 80s and cluster around 90s. Shifts in high and low interest areas are relatively frequent when retests are in several years apart.
Procedure for Experiment
There two experimental groups, Group Career Guidance (GCG) and Group Career Counselling (GCC). There are 40 students in each group. The pre-test of vocational interest inventory was administered on both groups. For the purpose of this study all the students that scored from 500 – 1500 are regarded as been vocationally matured but those that scored below 499 were regarded as poor and immature students vocationally. The subjects that were regarded as vocationally immature were randomly selected for treatment in each of the groups using Group Career Guidance technique. The two experimental groups were attended to in their different school locations.
Data collected were analysed using both descriptive and inferential statistics.