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In the early 1970s, statisticians had difficulty in analysing data where the random variation of the errors did not come from the bell-shaped normal distribution. Besides normality, these traditional regression models assumed linearity, independence and homogeneity of variance of the errors. Heterogeneous data, skewed data or data, where the response

The following results were elicited from the TIMSS 2023 survey which investigates achievement in science and mathematics of eighth-grade students. These results tackle several misconceptions in education which may have become ingrained into our culture. • A common perception is that Maltese male students are better in science subjects than female students