Knowing how groups of animals are related to one another gives us a way to test hypotheses about evolution, adaptation, and even extinction.
But many investigators also use rating scales for another purpose: they want to know how two groups of subjects, who differ in some way, experience things differently.
They want to know how faith groups got involved in the issue, and how Heathrow campaigners successfully challenged the economic case for a third runway at Heathrow, helping persuade a Conservative-led government to drop it.
Facebook doesn't know how many groups on its site are dedicated to buying and selling guns.
Scientists may now know how several groups of balancing rocks found near the San Andreas fault have never been toppled by an earthquake, BBC News reports.
We don't know how these groups will participate, support and accelerate what's happening.
We wanted to know how these groups saw patients' wishes regarding death, to what extent relatives and caregivers were informed about these ideas, and which conversations, interactions or reactions were important with regard to a patient's WTD statement.
Know how different groups typically respond to depression.
Once they know how specific group identities influence individuals' openness to messaging, communicators can tailor messages to fit particular groups much more accurately.
"When you join a new group and you want to add value, you lack some confidence, you don't know how the group dynamics work.
The authorities were scrambling to determine whether the known members of the group had connections to other undiscovered criminals, as officials from across the political spectrum demanded to know how the group could have operated undetected for so long.
