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Introduction: This study aimed to find the correlation between indoor radon concentration and ventilation rate in some selected elementary schools in Ibadan, Southwestern Nigeria. The schools and the rooms were selected on the basis of different natural ventilation conditions. Materials and methods: The measurements of indoor radon concentrations w...
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In the present study, ²²²Rn activity concentrations in a newly formed underground tourist route under Książ castle, Poland, were investigated for periods undisturbed and disturbed by construction works. This preliminary assessment is based on the almost 3-year long continuous measurements (28 Oct. 2016–02 Jul. 2019) done with an SRDN-3 instrument....
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... Lastly, findings from this research further indicates that; teachers need some time to get used to the Cambridge system of awarding grades. The more time a teacher spends teaching the Physics syllabus, the more the teacher become familiar with the system [28][29][30][31]. This is evident in the results obtained as shown in Tables 1 to 10. ...
Aim: This paper examined a comparative assessment of teacher's forecast and actual grades obtained by students who sat for Cambridge AS and A-Level International Examinations in an Advanced Level School, Ibadan, Oyo State, Nigeria for five (5) consecutive years. 19 Study Design: The teacher's mark book which documented the forecasted grades for Physics in Cambridge AS and A-Level International Examinations from the year 2014 to 2018 was consulted and compared with the actual grades obtained by students over the same period. Methodology: Two hundred and thirty-five (235) students' results constitute the sampled population. Ahead of the time of final Cambridge International Examinations (CIE), some students who had withdrawn from the school system due to the fact that they are dead, terribly sick or gained admission into other higher institutions of learning and did not have their names on the CIE result broadsheets were disqualified from being part of the sampled population. This enabled the researchers to accurately compared the forecast grades of students who sat for CIE with the grades that they actually obtained. Shapiro-Wilk test of normality was carried out and the P-value was above 0.05 level of significance, as this shows that the data was parametric. SPSS version 23 was thereafter used to analyze the data and the hypothesis was tested using paired sample T-tests. Results: There is no significant difference between Physics teacher's forecast grades and the actual grades obtained by students in Cambridge Advanced AS and A-Level International Examinations for 5 years (2014-2018) as the teacher's forecast grades for the last 7 examination series were accurate at P < 0.05 level of significance. The P-values; (0.083, 0.235, 0.260, 0.802, 0.328, 0.110 and 0.990) were above 0.05 significant level. Conclusion: Findings from our study showed that there is no significant difference between Physics teacher's forecast and the actual grades obtained by the students in the Cambridge
