Explain why a baby’s birth weight can be a good indicator for a baby’s health; however, the number is not always the perfect gauge since a tiny baby can be born completely healthy and an average sized newborn could have a host of health issues. In general, important predictors for baby birth weight include gestational age (how much time the child spends in the womb) and genetics (a reflection of the parent’s physiology).
A sample of 42 babies was chosen at a local hospital and their birth weights (kg) were measured in addition to their gestational time (weeks), mother’s height (cm), and mother’s pre-pregnancy weight (kg). The purpose of this study was to see whether there is a relation between a baby’s birth weight and their gestational time, mother’s height, or mother’s pre-pregnancy weight.
1. What are the hypotheses? (3 marks)
2. Perform separate correlation analyses to compare the relation between baby birth weights and gestational time, mother’s height, and mother’s pre-pregnancy weight. Copy and paste your jamovi output. Include:
a. Exploration of the data. Include descriptive statistics and figures. Indicate the mean, standard error, standard deviation, and number of observations for each variable in a table. (4 marks)
b. Results. Include the following results written in APA format: correlation and effect size (indicate whether your results have a small, medium, or large effect size). (6 marks)
c. Figures. Create scatterplots illustrating your results (can be constructed using any software program including Excel). (3 marks)
3. Write a description of your results using words and figures in APA format explaining what you can conclude from this study and whether you feel the results are practically significant. (4 marks)
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