A factorial design is an experimental design in which each level of each independent variable is replicated across all levels of the other independent variables.
A 2×4 independent-groups factorial design is a type of research design that is used to study the effects of two independent variables on a dependent variable. Two independent variables, one with two levels and one with four levels, are used in a 2 x 4 design.
This design is used when there are two or more independent variables that are each manipulated by the researcher. The dependent variable is measured at the end of the experiment.
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Explanation:
I think its true, correct me if I'm wrong
there were. so many rebellions
<span>When the child thinks that after arranging two rows of pennies and then s/he conclude that it is longer than the top row, the child is in preoperational Piaget's stage. This stage also demonstrate that the cognitive development is defined by its egocentric thought, the ability of a person to see things in a different perspective.</span>
I believe the answer is: The creation of national parks
Due to the conservation regulation from Theodore Roosevelt, The united states government founded 230 million acres of public lands that are resided for the creation of national parks. This parks were created to protect various forms of plants, animals, and natural resources reserves.