Answer:
obtain consistent data.
Step-by-step explanation:
Data are documented observations or results of investigations and measurements. The availability of data offers opportunities for obtaining information. The data can be obtained by perception through the senses (for example observation) or by performing a measurement process.
Consistent are determinants in an investigation, because without them or with incorrect data, research and investigation are bound to fail, without the possibility of obtaining concrete and positive results. For this reason, it is important that investigators would repeat the same investigation several times, so they will be sure that they have collected consistent data.