Participants volunteered for a study on "Attitudes toward television violence." However, they completed a survey on their own aggressive behavior. After the completion of the study, the researcher failed to inform the participants about the true purpose of the study. In this case, the researcher has failed to conduct a(n) .
cost-benefit analysis
simulation study
debriefing session
evaluative study

debriefing session

Explanation:Debriefing session looks at what has happened and how if happened. It is like reflection of all that occured , step by step and looking at how it happened and why it happened. This will mean the participants can be called all together and be told about the whole research and it's purpose.

the values of the selma marchers was to bring   their ability to vote into law. mlk was not hat march, which was protesting toward lbj