premise: How to identify lead paint<br>Determine if the paint is from 1970 or earlier. Most homes built before 1970 often have lead-based paint on the walls, doorways, stairwells, and baseboards. If your home is old and you know it was built in the early or mid 1900s, it may have lead-based paint.
hypothesis: Lead in paint cannot be easily detected
reason: not clear how easy it is to detect