Which type of influences are irregular and do not follow a predictable timetable?

• A. Normative age-graded influences
• B. Normative history-graded influences
• C. Genetic influences
• D. Non-normative influences

Answer: (D)

Verified step by step guidance

1. Understand the definition of normative age-graded influences: these are biological and environmental influences that are similar for individuals in a particular age group and tend to follow a predictable timetable (e.g., puberty, starting school).
2. Recognize normative history-graded influences: these are influences common to people of a particular generation due to historical events (e.g., wars, technological advances) and also tend to have a predictable pattern within that cohort.
3. Identify genetic influences: these are inherited characteristics passed down from parents to offspring, which follow biological patterns but are not necessarily tied to timing in the same way as age-graded influences.
4. Learn about non-normative influences: these are unique, irregular events or experiences that do not follow a predictable timetable and vary greatly between individuals (e.g., winning a lottery, experiencing a natural disaster).
5. Conclude that the type of influences described as irregular and not following a predictable timetable are non-normative influences.