Differences in Stubble Height Estimates Resulting from Systematic and Random Sample Designs

L. Larson; P. Larson; D.E. Johnson

doi:10.1016/j.rama.2019.03.007

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L. Larson,^1,* P. Larson,² D.E. Johnson³

¹aRetired Professor, Department of Animal & Rangeland Sciences, Oregon State University, Corvallis, O
²bNatural Resource Specialist, Oregon Cattlemens Association, Salem, OR 97301, USA
³cEmeritus Professor, Department of Animal & Rangeland Sciences, Oregon State University, Corvallis,

^* Correspondence: L. Larson, Dept of Animal & Rangeland Sciences, Oregon State University, Corvallis, OR 97331, USA. E-mail address: lllarson@eoni.com (L. Larson).

Abstract

Sampling design influences the accuracy and confidence that an investigator can place on the information derived from a data set. This study was undertaken to quantify the influence of systematic and random sample designs on the estimation of stubble height. Variance estimates, data set range, adequate sample size, and relative variation were greater with the systematic sampling design, and mean estimates were lower when compared with estimates derived from a random sampling design.

Citation Download Citation

L. Larson, P. Larson, and D.E. Johnson "Differences in Stubble Height Estimates Resulting from Systematic and Random Sample Designs," Rangeland Ecology and Management 72(4), 586-589, (2 July 2019). https://doi.org/10.1016/j.rama.2019.03.007

Received: 20 December 2018; Accepted: 22 March 2019; Published: 2 July 2019

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