Key Points Attribute data are characteristics that aren’t readily quantified by hard numbers. It is a discrete data type.

NicoElNino Simple random sampling (SRS) is a technique in which a researcher selects a random subset of people from a larger group or population. In simple random sampling, each member of the ...

Two methods of gathering data for analysis are simple random sampling and systematic sampling. One type of sampling may be more appropriate than the other depending on the experimental design ...

All the 43 public health facilities were included for facility survey. The qualitative sample comprised 12 health workers who were purposively sampled from the three types of health care facilities ...

NASA announced Wednesday a new strategy review team will assess potential architecture adjustments for the agency’s Mars Sample Return Program, which aims to bring back scientifically selected samples ...

Walt Whitman wrote, “I am large, I contain multitudes.” In qualitative social science, this applies as both a celebration of what makes us human and as a warning of the limitations of using artificial ...

NASA's troubled Mars sample-return program may have a new lifeline, in the form of a proposal from private space company Rocket Lab to help save the mission. When the Perseverance rover landed on ...

Rocket Lab's MSR study involves two Neutron launches of a sample retrieval lander and Earth return orbiter. Credit: Rocket Lab WASHINGTON — NASA has awarded a contract to Rocket Lab to study ...