In language development, which term refers to statements that are supported by data and research?

In language development, which term refers to statements that are supported by data and research?

• A. Opinion
• B. Fact
• C. Theory
• D. Hypothesis

Answer: (B)

In language development, statements supported by data and research are facts. A fact is an observation that researchers have repeatedly tested and confirmed through systematic study and replication. This is different from an opinion, which is a belief or judgment not backed by evidence. A hypothesis is a specific, testable claim researchers investigate to see if data support it. A theory is a broad, well-supported explanation that integrates many findings and helps explain why patterns occur. For example, if numerous studies consistently show that children begin producing first words around their first year, that pattern is a factual claim grounded in data, not just a belief or guess.

In language development, statements supported by data and research are facts. A fact is an observation that researchers have repeatedly tested and confirmed through systematic study and replication. This is different from an opinion, which is a belief or judgment not backed by evidence. A hypothesis is a specific, testable claim researchers investigate to see if data support it. A theory is a broad, well-supported explanation that integrates many findings and helps explain why patterns occur. For example, if numerous studies consistently show that children begin producing first words around their first year, that pattern is a factual claim grounded in data, not just a belief or guess.