Ch 3: Planning a Scientific Investigation

About This Chapter

Explore factors for consideration when designing a scientific experiment with video and text lessons on research variables, experiment parameters, control groups, and more. You'll also learn to identify the different types of experimental design.

Planning a Scientific Investigation - Chapter Summary

Review the characteristics of a well-designed scientific experiment with the help of our knowledgeable instructors. You'll take another look at how to develop a hypothesis; identify independent, dependent, and control variables; set up your experiment's parameters; and select experimental and control groups.

Instructors also weigh the pros and cons of various experimental designs - including between-groups, within-groups, single-factor, and multiple-factor designs - before outlining the effects of confounding, extraneous, and moderator variables on an experiment's outcome. By the time you finish this chapter, you should be familiar with the following:

  • The experimental design process
  • Components of a true experiment
  • Types of experimental designs
  • Effects of research variables

Instruction is delivered through short, illustrated video and text lessons that make it easy to study the steps involved in planning a scientific investigation. Transcripts with links to supplementary text lessons and self-checking quizzes are also included. Access them as many times as you need and use the video tags or lesson summaries to revisit key terms and topics of interest.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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