BIO122 CHAPTER 2 - SCIENTIFIC METHODS

What is the definition of "Science"?

• To observe

• To know

• To explore

• To experiment

Which of the following is the first step in the scientific method?

• Hypothesis

• Experiment

• Observation

• Conclusion

The scientific method helps scientists to:

• Prove a theory

• Test a hypothesis

• Observe untested variables

• Create new hypotheses

What does a hypothesis describe in the scientific method?

• A conclusion based on experiments

• A testable prediction or explanation

• A result of an experiment

• A scientific theory

In hypothesis-based science, the independent variable is:

• What remains constant

• What is being tested or manipulated

• What is being measured

• The prediction

What is a prediction in the scientific method?

• A result based on a hypothesis

• The first step of the scientific method

• A final conclusion from an experiment

• A method used to collect data

In an experiment testing sunlight’s effect on plant growth, the dependent variable is:

• The amount of sunlight

• The growth of the plant

• The type of plant

• The temperature of the environment

The control group in an experiment is:

• The group that is exposed to the experimental treatment

• The group used for comparison

• The group with the most variables

• The group that is observed

What is the primary difference between qualitative and quantitative data?

• Qualitative data is numeric, quantitative is descriptive

• Quantitative data is numeric, qualitative is descriptive

• Both types of data are numeric

• Quantitative data is unstructured, qualitative is structured

What is a null hypothesis?

• A hypothesis stating no effect between variables

• A hypothesis with a strong prediction

• A hypothesis based on previous knowledge

• A testable statement with two outcomes