A procedure for ensuring that is experimental design. Question 11 options:any and all effects on all experimental values are measuredthe change in the independent variable may be solely attributed to the change in the complex variablethe change in the dependent variable may be solely attributed to the change in the independent variablethe change in the dependent variable may be solely attributed to the change in the extraneous variable

the change in the dependent variable may be solely attributed to the change in the independent variable

Explanation:

Experimental projects are those developed from scientific methodologies that seek to analyze data and develop efficient and accurate conclusions. In this type of project, the dependent and independent variables are strongly linked and related to each other. However, the independent variable is the only one that has the power to modify and influence the dependent variable, through modifications in itself.

answer; i believe the correct answer is (4) flip a coin as each participant arrives,heads indicates assignment to the first group: tails indicates assignment to the second group;

answer; the edward snowden leaks of nsa classified material;