You decide to investigate whether requiring class attendance results in improved final exam performance in ECON123 class.

You have the final exam grade and the percentage of lectures attended for all ECON123 students over the last 5 years. (There is no actual data for this, just assume there is) For your proposed study provide a sentence or two describing each of the "5 boxes" that relate to the Backward Market Research Process. Identify two potential "confounding factors" associated with the 3 key biases that plague market experiments that may cause your results to be inaccurate.

Backward MR Analysis Table Framework ANALYSIS RESEARCH TABLE Raw Data QUESTION Table Variables Y Variables X Summary Test Statistics Statistics Data Sources ACTION STANDARD (how does result dictate a course of action)Confounding Factors: Threats to Internal Validity ' History: impact of other events at same time as treatment Testing: preobservation and/or observation causes change in response ' Selection Bias: assignment to group(s) has systematic bias Instrumentation: measurement changes ' Maturation: test units change pre to post ' Mortality: test units lost due to a systematic cause Regression to the Mean: original peak or valley clue to chance so revert to mean (SI Cover Curse)