Why are psychological experimental research methods expensive?

The disadvantage of method of psychological experiment is that the design is difficult and the cost is relatively high.

1. Psychological experiment method refers to a research method that purposefully controls or creates certain conditions, artificially causes or changes some psychological phenomenon and records it, mainly including laboratory experiments and natural experiments.

Second, principle: The basic principle of methodological psychology experiment is that when several other variables are properly controlled, the subjects try to systematically manipulate one independent variable A to change other variables, and then observe the influence of the change of A on another variable B. Here, variable A is usually called experimental variable, other controlled variables are called control variable, and a is called dependent variable. In the psychological experiment method, there is another variable called organism variable, which refers to the characteristics that the individual organism itself has an influence on the reaction.

When psychological experiments are used to measure individual psychological activities, there should usually be only one experimental variable, that is, for a certain psychological state. If two or more experimental variables are used at the same time, we should not only study the influence of each experimental variable on the reaction variable and the dependent variable, but also consider the mutual influence of multiple experimental variables on the reaction quantity.