Stable data & environmental conditions (250 words)

Explain what stable data responding say about the environmental conditions under which it occurred. Identify (2) reasons why an investigator should be concerned about trends in the data that have no obvious explanation and what a practitioner can do about it. 

Your post must include the following:

1. Paraphrased (in your own words) and cited in APA style, an explanation of the environmental conditions in which steady responding occurs (5 points).
2. Identify (2) concerns with trends that have no explanation (5 points each).
3. Provide a solution for one of your hypothetical  concerns.

In addition, provide  alternative solution  

* at least two sources.