Question

a variable can use only​

Answer 1

Answer:

A variable is something that can be changed or varied, such as a characteristic or value. Variables are generally used in psychology experiments to determine if changes to one thing result in changes to another. Variables play a critical role in the psychological research process.

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Answer 2

Step-by-step explanation:

A variable is something that can be changed or varied, such as a characteristic or value. Variables are generally used in psychology experiments to determine if changes to one thing result in changes to another. Variables play a critical role in the psychological research process.