In research terms, what qualifies a study as “valid”? a) if the study proves the hypothesis b) if the study measures what it claims to be measuring c) if the study succeeds d) if the study has strict conditions

which ever one is showing doing the same exercise in time intervals such as 30 seconds or a minute several times.

i would suggest the best recommendation want to get out of the vehicle and look around to make sure their isn't anyone near or behind the vehicle.

explanation:

loris malaguzzi was the founder of reggio emilia’s educational philosophy and together with the comune and many local administrators he participated in the birth and building of reggio emilia’s network of municipal preschools (3-6) and infant-toddler centres (0-3).