Qualitative vs. Quantitative Sampling What is the difference between: Quantitative and Qualitative Sampling?? • Qualitative Sampling: Observational evaluation of some attribute. • Quantitative Sampling: The measure or count of some attribute. Qualitative Sampling • Observational, not direct measurement. • Observer makes evaluation on condition or quantity. • Often much quicker than quantitative sampling. • Can be timely for making quick management decisions. • May be more subject to observer bias than quantitative sampling. • May be difficult to verify. Different Types of Qualitative Sampling • Presence or absence of species or trait • Site-condition evaluation • Rough estimates of population size or attribute • Photo interpretation Presence or Absence Plant survival after fire Rare plants Evaluate Spread of Disease
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Qualitative vs. Quantitative Sampling
What is the difference between: Quantitative and Qualitative
Sampling??
• Qualitative Sampling:Observational evaluation of some
attribute.
• Quantitative Sampling:The measure or count of some
attribute.
Qualitative Sampling• Observational, not direct measurement.• Observer makes evaluation on condition
or quantity.• Often much quicker than quantitative
sampling.• Can be timely for making quick
management decisions.• May be more subject to observer bias than
quantitative sampling.• May be difficult to verify.
Different Types of Qualitative Sampling
• Presence or absence of species or trait
• Site-condition evaluation• Rough estimates of population size or