All questions are not created equal …
We’ve determined the difficulty of these questions based on more than four hundred million responses from students nationwide using the online adaptive quizzing system Prep-U.
The difficulty meter below each question indicates the proportion of students answering the question incorrectly.
How can this help you?
We’ve included questions with a wide range of difficulties. It’s okay if you get some wrong. By noting the difficulty level of those giving you trouble, you can better assess where you stand as you master the material.
Science is:
All of the following are elements of biological literacy except:
Through objective observation, description, and experimentation, science helps us to discover and better understand the world around us.
The scientific method is a flexible, adaptable, and efficient pathway to understanding the world.
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Superstitions are:
To be useful in the scientific method, an observation must be:
Empirical results:
To be useful, a hypothesis will:
Which of the following statements is correct?
To draw clear conclusions from experiments, variables not of interest should be held constant, outcomes must be repeatable, and biases should be minimized.
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The placebo effect:
Which of the following correctly describes a double-blind test?
In controlled experiments:
If a researcher uses the same experimental setup as in another study, but with different research subjects, the process is considered:
An independent variable:
Visual displays of data can help readers think about and compare data, ultimately helping them to synthesize the information and see useful patterns.
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Statistical methods make it possible to:
Anecdotal evidence:
A relationship between phenomena that has been established on the basis of large amounts of observational and experimental data is referred to as:
Which of the following issues would be least helped by application of the scientific method?
What is the meaning of the statement “Correlation does not imply causation”?
Although the diversity of life on earth is tremendous, the study of life is unified by the themes of hierarchical organization and the power of evolution.
When I was a student, one of my professors had a policy of allowing students to bring a single 8½" × 11" sheet of paper into our exams. We were allowed to write whatever we wanted on this page beforehand and use it during the exam. I spent hours trying to distill the course material to its essential ideas and information. I mastered the art of tiny writing. And I was always very proud of the summary documents that I crafted.
It was with those little “cheat-sheets” in mind that I created the “Review & Rehear se” R&R guides. Please understand that they are not meant to be a replacement for the chapter itself. Rather, they are a prompt, to help you recall, review, and contemplate the most important material from the chapter after you have spent time reading and studying it. I hope they help you!
–Jay Phelan