International Journal of Health and Psychology Research Vol.11, No.1, pp.34-45, 2023 Print ISSN: ISSN 2055-0057(Print) Online ISSN: ISSN 20065(Online) Website: https://www.eajournals.org/ Publication of the European Centre for Research Training and Development -UK 34 Impact of Mother- Child Relationship On Moral Behaviour of Secondary School Science Students in South West, Nigeria Amos Olusola Ogunjobi (Ph.D) Department of Science Education, Faculty of Education, Federal University, Oye-Ekiti, Funke Aina Falemu Department of Science Education, College of Education, Bamidele Olumilua University of Education, Science and Technology, Ikere, Ekiti State, Nigeria Mary Ayodeji Gbenga-Epebinu Department of Nursing, Faculty of Basic Medical Sciences, Ekiti State University, Nigeria Samuel Oluwaseyi Olofin (Ph.D) Advocate Educational Consult, Nigeria doi: https://doi.org/10.37745/ijhpr.13/vol11n13445 Published June 23, 2023 Citation: Ogunjobi, A.O., Falemu F.A., Gbenga-Epebinu M.A., Olofin, S.O. (2023) Impact of Mother- Child Relationship On Moral Behaviour of Secondary School Science Students in South West, Nigeria, International Journal of Health and Psychology Research, Vol.11, No.1, pp.34-45 ABSTRACT: This study investigated the impact of mother- child relationship on moral behaviour of secondary school science students in South west, Nigeria. The study adopted descriptive design of the survey type. The population of the study consisted of 804,278 public secondary school science students in South West Nigeria and the sample consisted of 1,500 public secondary school science students in South West Nigeria which was drawn out of population using multistage random sampling procedure. The instrument used in the study was tagged ‘Mother-Child Relationship and Moral Behaviour Questionnaire (MCRMBQ)’. Face and content validities were determined by experts in science education. Corrections were effected based on their observations and instructions. Reliability of the instrument was ascertained through test-retest method and the reliability coefficient of 0.72 was obtained. The data collected was analysed with descriptive and inferential statistics. The result showed that the level of moral behavior of secondary school science students based on mothers’ educational level was moderate. It was also revealed that there is significant difference in moral behavior of secondary school science students based on mothers’ educational levels and that students whose mothers’ educational level were above secondary school had the highest moral behavior among the students. From the findings, it was recommended that adult literacy should be organized for parents especially mother with children in science classes in secondary schools so that they can contribute to their children’s moral behavior which will definitely affect their learning outcomes. KEYWORDS; mother- child relationship, moral behaviour, mothers’ educational level, science education and communication pattern