Fish Food. Fish love to gobble down leeches. A healthy fish population will, in most cases, keep leech numbers under control. Among game and lake fish, red ear sunfish do a great job of eating these worms. Other natural leech predators include turtles, crayfish and water fowl. Prevention, Removal
This literally means from after the fact. The term. is used to identify that the research has been conducted after the phenomenon of interest. has occurred naturally. The main purpose of a correlational study is to determine. relationships between variables, and if a relationship exists, to determine a regression. equation that could be used make predictions to a population. In bivariate correlational. studies, the relationship between two variables is measured.
Correlation analyses measure the strength of the relationship between two variables. Kendall's Tau and Spearmanâs rank correlation coefficient assess statistical associations based on the ranks of the data.Ranking data is carried out on the variables that are separately put in order and are numbered.n the other hand, the negative correlation signifies that as the rank of one variable is increased, the rank of the other variable is decreased. General purpose: Correlation analyses can be used to test for associations in hypothesis testing.