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.
This is the dependent variable! The dependent variable is that one that is being measured in an experiment and which is influenced by the independent variable - the experiment measures the effect of the independent variable on the dependent variable. An example: dependent variable: happines. Independent variable: income.