Experiments study causal relationships by manipulating independent variables. Design requires strong understanding of study system. Five main steps: define variables, write hypothesis, design treatments. Random assignment or observational study needed for valid results
Independent variable is the condition that is changed in an experiment. Dependent variable is the condition that is measured in an experiment. Independent variable is controlled by the experimenter. Dependent variable depends on the independent variable
Variables are characteristics that can take different values in research. Independent variable is the cause, independent of other variables. Dependent variable is the effect, depends on changes in independent variable
Variables are fundamental components for data collection and analysis in research. Five main types include independent, dependent, categorical, continuous, and confounding variables
Variables are categories or characteristics measured in equations or experiments. Independent variables stand alone and aren't affected by others. Dependent variables are effects or results that depend on other factors
Experimental research manipulates independent variables to measure their effects on dependent variables. Widely used in physical, social sciences, psychology, and education. Based on comparison between groups with straightforward logic