You can search on the internet or your book because I am not sure
Answer:
SIDS (sudden infant death syndrome)
Explanation:
SIDS is the unapprehended death of a human less than a year old.
SIDS is most common when the infant is 2-4 months old, and most cases happen during sleep (hence another name for SIDS, "crib death").
Is that it’s always changing
Professor Rashad is using a longitudinal research design.
This research design involves periodically collecting data from the same participants of a study over a long period of time. Longitudinal studies are useful when investigating certain phenomena (such as cognitive development) and comparing their developments during different stages or time periods in a participant's lifespan .
