A century before Titchener's work the philosopher ____ wrote that the act of introspection itself altered the conscious experience being studied.?

_________ is the least developed of a newborn baby's senses.

Fill in the blank(s) with the appropriate word(s).

Weight gain follows a pattern similar to height. During middle childhood, both boys and girls gain around ____________ pounds a year

a. 2 to 5 c. 6 to 9 b. 5 to 7 d. 9 to 12