Statistics Workshop

Experimental Design and Data Analysis
for Seed Testing Research

Instructors
Dr. Sabry Elias, AOSA Statistics Subcommittee Chair
Dr. Riad Baalbaki, AOSA Germination and Dormancy Subcommittee Chair

The workshop will cover the following topics

  • Principles of experimental design

  • Objectives of an experiment

  • Experimental unit and treatment

  • Choice of treatment

  • Experimental error and error control

  • Replication and its function

  • Randomization

Examples of Experimental designs
Completely randomized design (CRD): Randomization & layout
Randomized complete block design (RCBD): Randomization & layout
Factorial design: Randomization & layout

Data Analysis
Analysis of variance (ANOVA) for CRD
Analysis of variance (ANOVA) for RCBD
Analysis of variance (ANOVA) for factorial design
Analysis of non-parametric data

Comparison between treatment means
Least significant difference (LSD)
Standard deviation
t-test
Chi-square and other non-parametric methods
Other tests


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