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What Is The Reliability Of Instruments

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3.6.2 The Reliability of Instruments
Coolican (2008) characterizes reliability as a degree of consistency in giving comparable results on various however practically identical events. Reliability relates to consistency of a measure either across different testing (external) or within itself (internal). Test re-test of instruments was done to test reliability of the instruments. Scores from both tests were subjected to correlation test and a correlation co-efficient of 0.78 was established. Pearson moment correlation was used to carry out the correlation.

3.7 Data Collection The data collection techniques included questionnaires which were prepared for the teachers, the head teacher and the deputy head teacher. After explaining to …show more content…

Descriptive survey involves the utilization of frequency tables, graphs, pie-charts, computation of percentages and tabulating them appropriately (Gay, 1992). Lastly, a brief discussion of the findings was done.

3.9 Logistical and Ethical Considerations
It is essential that every researcher is aware of legal and ethical considerations. In this research the following were considered.

Permission The researcher got endorsement to collect information from the participants of the study from the National Council for Science and Technology, County Commissioners and County Directors of Education, Siaya and West Pokot counties. Administrators of the schools were likewise requested for consent to conduct the study in the respective schools, that is, Saint Francis and Saint Oda Schools for learners with Visual Impairments.

Respect for persons as autonomous individuals
In this study, it was guaranteed that respondents gave informed consent to partake in the study. Prior to the respondents giving consent, the motivation behind the study was fully disclosed to them in the language they were well acquainted with. Risks and benefits were highlighted. The respondents were made to understand that participating in the study was voluntary and they were free to pull back (withdraw) in the event that they so wish. The respondents were guaranteed that neither

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