Question

choose the research design that best matches each statement.

statement	research design
data is collected by asking questions of the subject.	experiment, observational study, sample survey
data is collected by watching the subjects as they are without manipulation.	experiment, observational study, sample survey

Explanation:

First Statement ("Results can be used to determine cause and effect.")

Experiments involve manipulating an independent variable to observe its effect on a dependent variable, allowing for cause - effect determination. Observational studies just observe without manipulation, and surveys collect data via questions, not for cause - effect. So the best match is Experiment.

Sample surveys are specifically designed to collect data by asking questions (e.g., questionnaires, interviews) from a sample of subjects. Experiments focus on manipulation, and observational studies focus on observing without interaction. So the best match is Sample Survey.

Observational studies involve observing subjects in their natural state without any manipulation of variables. Experiments involve manipulation, and surveys involve asking questions. So the best match is Observational Study.

Answer:

Experiment

Second Statement ("Data is collected by asking questions of the subject.")