Startalter
Startalter is a term used primarily in German-speaking contexts to denote the minimum age at which an individual is eligible to begin participating in a program, activity, or study. The concept is important for planning, eligibility, and classification, and it is not a fixed universal value. Startalter varies by country, organization, and context, and is often defined by official rules or guidelines that include cut-off dates, an age reference date, and sometimes exemptions for late entry.
In education, startalter can determine when a child enters kindergarten or first grade, influencing scheduling, curriculum
In research and clinical trials, startalter defines inclusion criteria based on age to ensure safety and relevance
Measurement and challenges: Startalter can be ambiguous when age is recorded only in years or when birth
See also: age eligibility, age class, cut-off date, relative age effect, youth development. This overview reflects