Experimental designs are the gold standard of research because they help eliminate any other explanation for why an intervention does or does not work. However, experimental designs are difficult in social service settings for many reasons. For purposes of practicality, we often opt for quasi-experimental designs that introduce limitations to our research (threats to validity). While it is nearly impossible to eliminate every threat to validity, there are ways to mitigate those threats.
Create an original discussion post, identify two potential threats to validity, and create ways to mitigate those threats using the scenario below:
Discussion �Identifying �Threats in �Foster Care
A non�profit serving foster youth has noticed that foster parents are not wanting older youth in their homes. The foster parents say the behaviors of older foster youth are too disruptive for their homes. Right now, the agency is desperately seeking foster homes for older youth. They have decided to provide a training to foster parents on how to work with adolescents who have experienced trauma and they want to know if the training is worth continuing for new foster parents they recruit. They have 100 foster homes in their agency. They invite all participants who are interested in the training to come for a four-hour training on a Saturday after which the parents will have three coaching sessions in their home. They give the parents a pre�test right before the training and a post�test after their third coaching session. The pre�test and post�test will ask them if they �will accept older youth in their home.� They plan to compare the pre�test results to the post�test results and see how much more likely the parents are to accept older youth in their homes.
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