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Talking About Statistical Significance In Numeracy, Nathan D. Grawe, Gizem Karaali
Talking About Statistical Significance In Numeracy, Nathan D. Grawe, Gizem Karaali
Numeracy
In recent years, much debate has surrounded the potential for audiences to be mislead by several common practices when reporting statistical significance tests. Two editors of Numeracy share the journals perspectives on these questions. As an interdisciplinary journal, we recognize and honor the genre differences represented by our authors and audience members. As a consequence, the journal is open to many practices. Still, we acknowledge the concerns raised by the American Statistical Association and others and encourage authors to write with care and clarity, however results may be represented.
How The Number Line Can Be Used To Promote Students' Understanding Of The Normal Distribution, Danri H. Delport
How The Number Line Can Be Used To Promote Students' Understanding Of The Normal Distribution, Danri H. Delport
Numeracy
A strong foundation in early number concepts is crucial for students’ future success in statistics. Despite its importance in statistics, many first-year students struggle to comprehend the normal distribution due to a lack of basic number sense. Students get confused about the order and magnitude of negative z-scores on a standard normal curve or when problems about normally distributed random variables are presented in word questions which involve phrases that indicate inequalities. As a result, students shade wrong areas on the bell-shaped curve when they have to calculate probabilities for normally distributed variables. Visual representations such as the number …