Mastering Independent and Dependent Variables

What is the purpose of reviewing research?

To revise theories (correct)
To design an experiment
To collect data
To construct a theory

Why is Eric's anecdote unconvincing?

Anecdotal evidence is always accurate
Anecdotal evidence is unreliable (correct)
Anecdotal evidence is based on experiments
Anecdotal evidence is sufficient to draw scientific conclusions

Which one of these is the independent variable in a biology experiment measuring the effect of enzyme on cell growth?

Cell growth
Amount of enzyme added (correct)
Temperature of the environment
Type of enzyme used

Which one of these is the dependent variable in a kinesiology experiment studying the effect of exercise intensity on fitness?

Fitness level (D) Signup and view all the answers

What is the independent variable in Eric's experiment studying the effects of an energy drink on test performance?

Energy drink consumption (D) Signup and view all the answers

What is the dependent variable in Eric's experiment studying the effects of an energy drink on test performance?

Test scores (C) Signup and view all the answers

Which of the following is NOT one of the steps in the Scientific Method?

Revise existing theories (C) Signup and view all the answers

What is the purpose of constructing a theory in the Scientific Method?

To collect a general set of ideas about the way the world works (A) Signup and view all the answers

Which step of the Scientific Method involves analyzing data?

Analyze data (C) Signup and view all the answers

What is the purpose of revising existing theories in the Scientific Method?

To revise existing theories (C) Signup and view all the answers

Which step of the scientific method involves selecting a research method to test the hypothesis?

Forming a theory (B) Signup and view all the answers

Which of the following is the correct order of the steps in the scientific method?

Form a theory, collect data, analyze data, report findings (A) Signup and view all the answers

What is the purpose of publishing articles in scholarly journals?

To revise existing theories (B) Signup and view all the answers

What is a paradigm shift in the context of scientific research?

A change in our way of thinking that challenges existing beliefs (B) Signup and view all the answers

Which variable does the independent variable affect in Eric's experiment?

Test scores (D) Signup and view all the answers

What is the purpose of Eric's control group in his experiment?

To ensure consistency across trials (B) Signup and view all the answers

What is the dependent variable in Eric's experiment?

Test scores (D) Signup and view all the answers

What does Eric observe in relation to energy levels in his experiment?

Changes before and after the independent variable (A) Signup and view all the answers

What is the purpose of Eric's experiment?

To measure the effect of energy drink consumption on test scores (B) Signup and view all the answers

What is the role of the control group in Eric's experiment?

To ensure consistency across trials (A) Signup and view all the answers

Which of the following is NOT a problem with relying on anecdotal evidence to draw scientific conclusions?

The energy drink might not affect test performance (A) Signup and view all the answers

What is the hypothesis in Eric's experiment?

If the energy drink enhances studying, then students who consume it should have better test scores than those who do not (D) Signup and view all the answers

Why is relying on a single experience to verify the effectiveness of the energy drink problematic?

All of the above (D) Signup and view all the answers

What is the purpose of conducting an experiment in scientific research?

To measure the effect of one variable on another (A) Signup and view all the answers

According to the scientific method, what is the next step for a scientist after collecting data?

B) Analyze the data to see if it supports or refutes the hypothesis. (A) Signup and view all the answers

According to the text, what is the purpose of the scientific method?

B) To support accurate results and scientific discourse. (C) Signup and view all the answers

What step of the scientific method comes after analyzing the data?

C) Revising existing theories to incorporate the new data. (A) Signup and view all the answers

What is the purpose of designing an experiment in scientific research?

C) To require results to support the hypothesis or be useful to society. (A) Signup and view all the answers