A cash register, also referred to as a till in the United Kingdom and other Commonwealth countries, is a mechanical or electronic device for registering and calculating transactions. It is usually attached to a drawer for storing cash and other valuables.
Internal equity is a term related to various considerations about a workerâs view of the wages he or she receives in relation to ideas or observation of what wages he or she should.
Internal validity refers to the ability to draw conclusions about causal relationships from our data. A study has high internal validity when strong inferences can be made that one variable caused changes in the other variable.