Final answer:
The early 1900s belief that picking up a baby between feedings would spoil the child is a fact, as it was the prevailing advice of child-care experts of that time; however, it also embodies the opinions those experts held, making it a mixture of fact and opinion.
Step-by-step explanation:
In the early 1900s, the assertion that picking up a baby between scheduled feedings would spoil the child is a fact. This was a prevalent belief influenced by the child-care experts of that era. However, it is worth noting that this fact portrays the opinion held by those experts at the time; therefore, the statement contains both fact and opinion elements.
At the time, parenting practices and theories on infant care were influenced by society's views on women's roles, and ideas such as 'maternal feminism' started to emerge. The practice of not picking up children between feedings was a recommendation which reflected the broader views on child rearing and the role of mothers in early 20th century society. Moreover, this advice was given by recognized child-care experts who established the norms for infant care during that period.