About This Chapter
Observation and Data Collection - Chapter Summary
Use this chapter to affirm your understanding of the processes involved in studying changes to natural phenomena and review the technology available to help you collect and display experiment data. Our experienced instructors discuss measures of variability and the significance of data accuracy and precision.
These lessons are also designed to make sure you can recognize the risks associated with scientific experimentation and implement the proper safety precautions. Conclude your review with lessons covering the use of print and electronic source materials as well as methods for evaluating their reliability and credibility. Topics of instruction include:
- Observations of natural phenomena
- Scientific tools and technology
- Methods for evaluating experiment data
- Measures of variability and controlled tests
- Experiment safety precautions
- Reliability of print and electronic sources
- Online research tips
These engaging lessons provide you with a convenient way to review observation and data collection techniques. You can watch the illustrated videos or read the transcripts at your own pace, anywhere you take your laptop or cell phone. Each lesson also comes with a quiz useful for determining when you're ready to move on to the next topic.
1. Observing Changes in Natural Phenomena Over Time
Science is all about observing changes - even when they are difficult to observe. Learn about how scientists observe changes in natural phenomena over time. Test your knowledge after the lesson with a quiz.
2. Using Technology in Scientific Experiments & Analysis
How is technology used in scientific experiments? How is it used to analyze data? Learn about how science and technology are related, and then take a quiz to see what you've picked up.
3. Evaluating Data from Scientific Investigation
After watching this video, you will be able to explain the meaning of the terms 'accuracy' and 'reproducibility,' or precision, as they relate to science experiments. A short quiz will follow.
4. Variability in Statistics: Definition & Measures
Variability is a measure of the spread of a data set. Learn more about the different measures of variability including the range, variance, and standard deviation, and the way in which they are used in the field of psychology.
5. Statistic Variability & Controlled Tests
In this lesson we will learn about what happens when statistical variability is not taken into account and how controlled tests can help prevent unknown variability.
6. Understanding Risks & Taking Safety Precautions in Science Experiments
An important step in designing your experiment involves identifying and evaluating any potential safety risks. Knowing what these risks are ahead of time can help you avoid accidents and dangerous situations, which helps keep the experiment safe and fun for all.
7. Evaluating Print & Electronic Sources for Research Projects
Print sources and web sources are both used in research. This lesson will discuss how print and electronic sources compare and what you can to do determine the validity of your sources.
8. Using Search Engines for Online Research
The Internet can be a resource that saves you time, but if you don't know how to use it properly, it can be a frustrating experience. In this lesson, you will learn about how to properly find supporting materials online with research tips and tricks.
9. Evaluating Sources for Reliability, Credibility, and Worth
It's important to have information that is reliable, credible, and worthwhile in your speech. Sometimes, it's hard to determine these factors. This lesson will help you!
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Other chapters within the College Physics: Help & Review course
- Scientific Inquiry
- Formulating Scientific Questions
- Planning a Scientific Investigation
- Data Analysis and Graphing
- Drawing and Explaining Conclusions
- Safety During Science Experiments
- Scientific Ethics
- Motion and Newton's Laws
- Kinematic Equations in Physics
- Properties of Rotational Motion
- Linear Momentum Principles
- Work, Energy and Power
- Heat and Thermodynamics
- Characteristics of Waves
- Electrical & Magnetic Forces
- Electric Potential & Capacitance
- Physics Circuits
- Magnetic Forces and Fields
- Quantum Mechanics and the Standard Model
- Science Literacy
- Diversity in Science
- Historical Perspectives in Physics
- Science, Technology and Beliefs