How can you tell if the information you find is good information? Use the CRAAP test. It's a list of questions to help you evaluate the information you find. Different criteria will be more or less important depending on your situation or need.
The timeliness of the information.
The importance of the information for your needs.
The source of the information.
The reliability, truthfulness and correctness of the content.
The reason the information exists.
CRAAP test adapted from California State University, Chico.
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Some tips when selecting your search terms:
e.g. teenager, teen, teens, youth, young adult, juvenile, adolescent
e.g. colour / color, behaviour / behavior, lift / elevator
e.g. heart attack / myocardial infarction
e.g. child, child's, children, childhood
e.g. computer aided design / CAD
Evaluating Information - tutorial from Penn State University
Evaluating Internet Health Information - tutorial from National Library of Medicine
Evaluating Web Resources Checklist