In forensic identification, it is crucial to know whether a specific technique, for example, hair analysis, can actually measure if one hair matches another one. If the technique doesn't do a good job, it means it has:

An economic term that describes happiness and its hard to measure in numbers is

According to subpart d, research with children may be eligible for exemption when: the children will be asked to complete a surveythe research involves the use of educational teststhe children will be interviewed by the researcher.the research with children will involve participant observation with researcher interaction.

Which choice best describes how your answer compares to the sample