Choose a sampling method:Different methods can be used depending on the study's objectives. For example, random sampling focuses on fairness, whereas systematic sampling uses regular intervals. Determine the sa
Therefore, this kind of sampling method is inadvisable when used for a representative study. The online survey with snowball sampling is, of course, not able to deliver representative results. However, it can be easily used when we know the basic population and have online access to its ...
A method for measuring the comparability of different sampling meth- ods used in biological surveys: implications for data inte- gration and synthesis. Freshwater Biology 50: 1105-1115.Cao, Y., C. P. Hawkins, and A. W. Storey. 2005. A method for measuring the comparability of different ...
Needle rotation delivered larger biopsy samples than the standard method. Laitinen provided larger samples than the Nashold needle, with the same sampling method or vacuum pressure. A higher histopathological diagnostic quality of tissue was obtained with the Laitinen needle than with Nashold, with ...
project on municipal wastewater treatment plants, 500–1000 mL of wastewater was collected by a grab sampling method in high-density polyethylene (HDPE) sterile containers. The specimens were transferred to the laboratory on ice and kept at 4°C. Then, 200 mL of the sewage was processed by ...
Neyman, J. (1992). On the Two Different Aspects of the Representative Method: the Method of Stratified Sampling and the Method of Purposive Selection. In: Kotz, S., Johnson, N.L. (eds) Breakthroughs in Statistics. Springer Series in Statistics. Springer, New York, NY. https://doi.org/...
longer duration or distance or a larger ratio among control participants. A negative effect size illustrates the opposite effect. Red dots denote the effect size and black bars the 95% CI for each effect size. CIs computed using the exact analytical method as implemented in the measures of effe...
A cluster was defined as the totality of students being enrolled in a particular major at a particular institution (e.g., all students studying mathematics at the University of Cologne). This sampling strategy resulted in 444 realized clusters, 52 of which consisted only of teacher candidates (...
Exploring, feeding, playing and tail wagging were observed by instantaneous observation at 20-s intervals and sampled with the one-zero sampling method, and all the occurrences of the above behaviours during observation were recorded. These data were regarded as event behaviours and recorded as ...
Cyclic loading and load-to-failure data were recorded using MultiPurpose TestWare software (MTS system Corp., Minneapolis, MN, USA) at a sampling rate of 500 Hz. The resolution of the used measurement system was 1 N for the force and 0.075 mm for the displacement. In the loading protocol...