====== Sampling ======
 
The process of selecting a [[sample]] is called [[sampling]]. [[Researcher]]s use different sampling techniques to ensure that the sample is representative of the [[population]] they are studying. Common sampling techniques include random sampling, stratified sampling, cluster sampling, and convenience sampling.

Once a sample has been selected, researchers collect data from the sample using various methods such as surveys, interviews, observations, or experiments. The data collected from the sample is then analyzed using statistical methods to draw conclusions about the population.

It is important to note that the size and representativeness of the sample can affect the accuracy of the study's findings. Therefore, researchers must carefully consider the sample size and sampling technique they use to ensure that their results are valid and reliable.
----
[[Method]]ological [[quality]] refers to the level of [[rigor]] and [[validity]] in the [[design]], [[implementation]], and [[analysis]] of a [[research]] study. In other words, it refers to how well a study has been conducted and how confident we can be in its findings.

Some factors that can affect methodological quality include the [[sampling]] method, [[data collection]] techniques, the use of appropriate [[measure]]s and statistical analyses, the control of [[confounding]] variables, and the reporting of [[results]]. A study with high methodological quality is more likely to produce reliable and accurate results and to be considered trustworthy by other researchers and the scientific community.