THE
COMMUNITY HEALTH SCIENCES
CHS 623: Biostatistics
Instructor: Amal Mitra, M.D., M.P.H., Dr.P.H.
Professor of Epidemiology & Biostatistics
Phone: 266-5705; E-mail: amal.mitra@usm.edu
Text: Daniel, W. W. (1999). Biostatistics: A Foundation For Analysis in The Health Sciences, seventh edition. NY: John Wiley & Sons.
Objectives: 1. To understand the basic principles and tools of descriptive and inferential statistics;
2. To apply statistical methods appropriately in problem solving situations;
3. To enhance skills in data management and analysis using SPSS.
Materials: A scientific calculator will prove to be invaluable in saving time in solving problems of homework and taking exams. A calculator will be allowed when taking tests.
Grading policy:
95 - 100% points : A
90 – 94% points : A -
87 - 89% points : B +
84 – 86% points : B
80 – 83% points : B –
77 – 79% points : C +
74 – 76% points : C
70 – 73% points : C -
64 - 69% points : D +
60 – 63% points : D -
Below 60% : F
Your final grade will be determined by your performance in the following areas:
Midterm exam (closed book) 40%
Final exam (open book) 40%
Takehome test on regression 10%
Literature review (2) 10%
Exams:
Midterm and Final Exam:
Mainly problem solving and short answers. You may need a calculator. Test
questions may cover class lectures, text, and exercises presented in the class.
There will be no makeup exams given. If you miss an exam for an inexcusable
reason, you will receive no credits for that exam. If you have prior knowledge of a schedule
conflict regarding an exam, please make arrangements to take it early with
valid documents.
Assignments: Deadlines for the assignments will be honored. If you turn in an assignment in late without an excusable reason, 2 points will be deducted for each day being late.
LITERATURE REVIEW
Purpose: To know the application of statistical methods discussed in the class. You should write the literature review using the following guidelines:
1. Get a journal article which shows applications of some of the statistical tools discussed in the class. Show what statistics (e.g. mean, standard deviation, bar chart etc.) have been used in the article and turn in a copy of the article along with your brief review.
2. Your review should not exceed 10 sentences, which include:
a. Title: the authors name, title of the paper, source of publication;
b. Abstract: aim of the study (one sentence), method used (two sentences), results (three - four sentences), conclusion (one sentence);
c. Statistical Applications: briefly describe applications of the statistical tools in this article.
Tentative Course Outline
WEEK TOPIC/CHAPTER
01 Course overview. Introduction to biostatistics, review of statistical terms. Chapter 1
02 Measures of central tendency, Measures of dispersion. Chapter 2
03 Probability concepts, Screening tests. Chapter 2, 3
04 Binomial distribution, Poisson distribution. Chapter 4
05 Random sampling; Inferential statistics: steps of hypothesis testing, power, error rates Chapter 7
06 Sample size estimation (class notes)
07 Estimation. Chapter 6
08 Midterm Exam; Literature review-I due
09 Hypothesis testing: population means. Chapter 7.
10 Hypothesis testing: population proportions. Chapter 7.
11 Hypothesis testing: population variances. Chapter 7.
12 ANOVA. Chapter 8.
13 Correlation, regression. Chapter 9. Takehome test on regression (computer outputs given)
14 Takehome test on regression due. Chi-square distribution. Chapter 12
15 Review
16 Literature Review-II due; FINAL EXAM