Question: Task: For each selection identify if the research is an experiment or a study and explain why. I need help to solve these experiments. 1.

Task: For each selection identify if the research is an experiment or a study and explain why.

I need help to solve these experiments.

1. A researcher runs an experiment to find out which type of waiter receives the biggest tip - a friendly, smiling waiter or a non-smiling waiter.

- Hypothesis: answer here

- Independent and dependent variables: Answer here

- Operational definition of variables: answer here

- Controlled/confounding variable: answer here

2. A researcher runs an experiment to find out if students perform better on tests if music is played in the background.

- Hypothesis: answer here

- Independent and dependent variables: Answer here

- Operational definition of variables: answer here

- Controlled/confounding variable: answer here

3. A researcher runs an experiment to find out if watching violent television causes violent behavior in children.

- Hypothesis: answer here

- Independent and dependent variables: Answer here

- Operational definition of variables: answer here

- Controlled/confounding variable: answer here

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