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Nondetects And Data Analysis (NADA): (Existing registrants only)
1. Downloads and Getting Started
Welcome to NADA
Install R Software
Download Course Materials
Get Started Using R / RStudio (36:20)
2&3. Reporting/Detection Limits and Databases
2. Definitions of Detection and Quantitation Limits (24:53)
3. Storing Nondetects in Databases. With R Exercise to Read in Files. (32:42)
4. Plotting Data with Nondetects
Plot Data with Nondetects. With Exercise. (68:31)
5. Computing Descriptive Statistics with Nondetects
Computing Desc. Stats With Exercise (66:38)
6. Intervals with Nondetects
Confidence, Prediction and Tolerance Intervals (41:04)
Interval Estimates with Nondetects - Exercise (27:38)
7. Tests for Matched Pairs and Comparing Data to Standards
7a. Matched Pair Tests with Nondetects (56:03)
7b. Tests for Exceedance of Standards with Nondetects (41:11)
8. Comparing Two Groups of Data with Nondetects
Parametric and Nonparametric Tests for Whether Two Groups Differ (54:53)
9. Comparing 3+ Groups of Data with Nondetects
Parametric Tests for Whether 3 or More Groups Differ (41:10)
Nonparametric Tests for Whether 3 or more Groups Differ (31:22)
How Multiple Comparison Tests Work (57:00)
10. Correlation and Regression with Nondetects
Correlation and Regression with Nondetects (60:01)
Multiple Regression with Nondetects, then an exercise (53:38)
11. Logistic Regression with Nondetects
How Logistic Regression Works and Why to Use It (47:52)
Model the Probability of Exceeding Detection Limits (49:12)
12. Trend Analysis for Data with Nondetects
Parametric Censored Regression for Trend Analysis (51:55)
Nonparametric Kendall's tau Methods for Trend Analysis (37:44)
13. Multivariate Methods with Nondetects
Multivariate Methods with Nondetects: Binary Methods (68:32)
Multivariate Methods for data with Nondetects: Ordinal Methods (30:15)
Multivariate Methods with Data Below Multiple Detection Limits (34:41)
Parametric Censored Regression for Trend Analysis
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