You are interested to know how consumers react to different promotion methods during a shopping experience. To collect the data you post an advertisement explaining the goal of the research study and also the compensation that the respondents will be provided for participating in the study. To collect the appropriate data for your research, you mimic the shopping experience using a market simulation and collect data by observing the reactions of the respondents. This is an example of what type of data collection technique? Disguised observational technique. Web based observation technique Natural Observation technique Contrived Observation technique