Brain tumor . Depending on where it is, it can cause different types of hallucinations. If it's in an area that has to do with vision, you may see things that aren't real. You might also see spots or shapes of light. Tumors in some parts of the brain can cause hallucinations of smell and taste.
The second major variable of interest to researchers is the dependent variable. The dependent variable (so called because its value depends on which level of the independent variable the subject received) is the response to the independent variable. In Dr. Harvey's research study, the dependent variable is the way that people are treated in the workplace. Dr.
an independent variable (IV) and dependent variable(s) (DVs). An Independent Variable is manipulated (controlled) by the experimenter, and has at least two different conditions (e.g., âtreatmentâ and âcontrolâ conditions). Experimental Research Dependent variablesare measured by the experimenter, and are used to determine the effect of the Independent Variable. In most experiments, researchers measure several dependent variables to learn the effect of the independent variable. Examples of Experimental Research Letâs watch the Psychologist and the Experiment Review: Nonexperimental Versus Experimental Methods Nonexperimental method