Question

A scientist conducted laboratory tests to measure the effects of different fertilizers on plant growth. Describe which type of data source was used in this study and explain your reasoning.(1 point)
Responses

It is a secondary data source because the scientist used previously published research articles.
It is a secondary data source because the scientist used previously published research articles.

It is a secondary data source because the scientist observed plants in a natural setting.
It is a secondary data source because the scientist observed plants in a natural setting.

It is a primary data source because the scientist analyzed government agricultural reports.
It is a primary data source because the scientist analyzed government agricultural reports.

It is a primary data source because the scientist conducted laboratory tests to gather original data.
It is a primary data source because the scientist conducted laboratory tests to gather original data.

Answer 1

Correct answer: "It is a primary data source because the scientist conducted laboratory tests to gather original data."

Reasoning: Primary data are data collected firsthand by the researcher for the specific study (e.g., experiments, measurements, surveys). Conducting laboratory tests produces original measurements of plant growth under different fertilizers, so this is primary data.