Internal Supervision And Teacher’s Effectiveness In Public Secondary School
[A CASE STUDY OF BIDA LOCAL GOVERNMENT AREA, NIGER STATE]

CHAPTER THREE
RECHEARCH METHOOLOGY
This section of the study comprises of the research design, population, sample and sampling techniques research instrument, validity and reliable of the instruments, procedure for data collection and method of data collection and method of data analysis.
Research Design
The study is meant to investigate the relationship between students’ academic performance in public secondary schools in kaduna north government area, kaduna state
Therefore, a descriptive survey research design was employed in carrying out the research.
Population Sample Techniques
A population is the society or aggregate of all observation of item under consideration. The population for this study comprised all the secondary schools in kaduna north local government area, kaduna state.
Sampling Techniques
Stratified random sampling techniques were used to select ten (10) out of sixteen (16) secondary schools.
Proportional sampling techniques was used to select twenty students from each selected school. Therefore, two hundred students were used for the whole study.
Research Instrument
    The questionnaire designed by the researcher is titled students personnel services questionnaire (S.P.S.Q.) and collect WAEC result between 2011-2015.
Selection A of the questionnaire was divided into two parts A and B. part A is one the background information of the respondent on sex, class, and students department while part B of the( S.P.S.Q) contains 25 items  relating to the sub-variable that were measured on the student personnel services questionnaire. Te rating scale used was likert-rating scale which ranges from SA -stongly agree, A – agree, D – disagree, SD - strongly disagree.
Validity of instrument
    Validity is the extent to which the test measures what it is purported to measure and how well it does so.
The instrument was submitted to experts in the department of educational management and the facility of education, Al-Hikmah university for their comment and critisms in order to ascertain its content and face validity.
    Reliability of the instrument
The test re-test method was to determine the reliability of the (S.P.S.    Q.). The research instrument was administered on twenty five respondents that were drawn outside the sampled schools, these instrument were administered twice within the time interval of the two weeks. The two result were co-related using pear son product moment correlation, and a reliability co-efficient of 0.65 was obtained indicating that the instrument was reliable
Procedure for data collection
The research instrument was administered by the researcher with the aid research assistants to the selected public secondary schools, kaduna north local government area kaduna state.
Method of data analysis
    The data collection were analysed using inferential statistic of pear son product moment correlation to test generated research hypotheses at 0.05 level of significance