Specific normative events are also called age-related standards averages benchmarks developmental milestones

Specific normative events are also called developmental milestones.

developmental milestones

Explanation:

Certain events that occur during a human's lifetime are termed as milestones. It is because these events take place for the first time in the human being's life.

And, mark the beginning of a new ability, a new action that the human can perform then onward. Since there is a development of a new ability/skill with that event, the event is called a developmental milestone.

you probably know the answer. stop asking stupid questions and making me waste my time. j.k. ; )   b.t.w. what are three ratios equivalent to 5 : 11? thx