21. Correlational studies also show that beliefs in a just world are correlated with internal locus of control.22. There is correlational evidence for this theory in a butterfly, " Pieris napi ". 23. These benefits, while being correlational , may come about as a result of becoming more religiously involved. 24. Examples of research approaches include experiments, surveys, correlational studies, ethnographic research, and phenomenological inquiry. 25. One correlational study compared mortality rates due to suicide to the use of SSRI antidepressants within certain counties. 26. As expected, conscientiousness was a significant correlate of job satisfaction scores in both correlational and regressional analyses. 27. However, Dunbar's research showed a correlational rather than causational relationship between mental and physical phenomena. 28. However, the research in this field is predominantly correlational , so caution must be taken when inferring causation. 29. Then, due to the concept's " rich correlational structure ", a series of associations become activated. 30. This led to Ronald C . Blue & Wanda E . Blue s general model of Correlational Holographic Opponent Processing.