By Day 3

Post the title of the study that you selected and your analysis of the potential concerns that could be raised about the study’s internal validity. Propose recommendations to strengthen the internal validity and assess the effect your changes could have with regard to the other three types of validity. Discuss the dangers of failing to consider the validity of a research study.

Read a selection of your colleagues’ responses.

By Day 6

Respond to at least two of your colleagues in one or more of the following ways:

• Ask a probing question, substantiated with additional background information, and
• Share an insight from having read your colleagues’ postings, synthesizing the information to provide new
• Offer and support an alternative perspective using readings from the classroom or from your own review of the literature in the Walden
• Validate an idea with your own experience and additional
• Make a suggestion based on additional evidence drawn from readings or after synthesizing multiple
• Expand on your colleagues’ postings by providing additional insights or contrasting perspectives based on readings and

SOLUTION

There are potential concerns relating to validity. One concern is that the subjects were not random (Yuan et al., 2009). Another concern is the lower pre-intervention scores on the fitness indicators in the experimental group may indicate some bias in the process of allocation (Yuan et al., 2009). Most subjects were married and felt they had a heavier workload than the other participants (Yuan et al., 2009). The married participants felt more motivated than single participants……Please click the icon below to access entire solution at $5