Product evaluation is an important step to ensure that a product will meet the quality, features, and overall design that is acceptable to the consumer. Imagine that you are an evaluator for a new product. Describe common challenges that you will find in a controlled and in a natural environment setting among users. Suggest actions that you can take in order to address or prevent these challenges.

An Institutional Review Board (IRB) is concerned with how human participants in an evaluation are treated and how the collected data is analyzed and stored. Not every country has IRBs. Provide your opinion on how studies conducted in countries with no IRBs should be perceived. Suggest whether or not data collected during those studies would be reliable. Justify your response.