Twin and Adoption Studies: Practices & Findings


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The influence of environment on a person's behavior is sometimes referred to as:

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1. The influence of genetics on a person's behavior is sometimes referred to as:

2. A(n) ____ study compares a person to his or her biological vs. adoptive parents.

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About This Quiz & Worksheet

Twin and adoption studies can be used by psychologists to understand the influences of nature vs. nurture on a person's behavior, and this quiz/worksheet duo will help test your understanding of the definitions related to these studies.

Quiz and Worksheet Goals

In this assessment, you will be tested on the definitions of:

  • Nurture
  • Nature
  • Adoption study
  • Twins
  • Identical Twins

Skills Practiced

*Reading comprehension - ensure that you draw the most important information from the related twin and adoption psychological studies

*Making connections - use your understanding of the nature vs. nurture debate and its connection to twin and adoption studies.

*Defining key concepts - ensure that you can accurately define key words, such as adoption study and identical twins.

*Distinguishing differences - compare and contrast topics from the lesson, such as a person's behavior being influenced by their genetics as opposed to their environment

Additional Learning

To learn more about twin and adoption studies, review the accompanying lesson Twin and Adoption Studies: Practices and Findings. This lesson covers the following objectives:

  • Define genetics
  • Understand the nature vs. nurture debate
  • Define adoption and twin studies
  • Understand the ways in which adoption and twins studies help psychologists draw conclusions about a person's behavior in the nature vs. nurture debate.