Research suggests that the age at which toilet training takes place has risen over the years. In 1999, what percentage of children had been toilet trained by 18 months of age?

An infant's excitability is known as their ________, while their ability to control their reactions is known as ________

Fill in the blank(s) with correct word

Interrater reliability is a measure for the extent to which two or more raters of the same behavior or event are in agreement with what they observed.

Answer the following statement true (T) or false (F)