Scientist studying memory want to know whether a set of numbers (24156) or a set of letters (BJRFS) is easier to remember. What would be one constant (or controlled) variable that the scientist would use in this investigation?

THE NERVOUS AND ENDOCRINE SYSTEMS

Please wait while the activity loads.
If this activity does not load, try refreshing your browser. Also, this page requires javascript. Please visit using a browser with javascript enabled.

If loading fails, click here to try again

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	number of correct answers
B	the length of the sets-5 numbers and 5 letters
C	height of the people being tested
D	None of the above

Explanation:

Detailed explanation-1: -Variables are important to understand because they are the basic units of the information studied and interpreted in research studies. Researchers carefully analyze and interpret the value(s) of each variable to make sense of how things relate to each other in a descriptive study or what has happened in an experiment.

Detailed explanation-2: -A controlled variable in an experiment is the one that the researcher holds constant or controls. It is also known as a constant or control variable. The controlled variable is not part of an experiment. It is not an independent or dependent variable.

Detailed explanation-3: -There are three main variables: independent variable, dependent variable and controlled variables.

There is 1 question to complete.

AP PSYCHOLOGY

BIOLOGICAL BASES OF BEHAVIOR

THE NERVOUS AND ENDOCRINE SYSTEMS