What are the three methods of selection that have been generally used and discovered by Hazel and Lush? Explain briefly
Hazel and Lush, in their research on selection, have provided three methods commonly used in selection:
1. Selection by Consequences: This method involves choosing individuals based on the consequences of their behavior. It is believed that individuals with desirable traits or skills tend to be selected more frequently because of the positive outcomes they generate. Conversely, individuals with undesirable traits or poor performance may be selected less often or even excluded. This method assumes that selection is driven by the consequences individuals produce.
2. Selection by Heritability: This method suggests that individuals are selected based on their genetic attributes or hereditary factors. It is believed that certain traits or characteristics are inheritable and can be passed down through generations. By selecting individuals with desirable genetic traits, it is believed that these traits become more prevalent in future generations. This method focuses on the genetic basis of selection.
3. Selection by Correlation: This method involves selecting individuals based on their correlation or association with a desirable outcome or trait. It assumes that certain observable characteristics are associated with the desired outcome, even if there is no clear causal relationship. For example, selecting individuals with high educational qualifications for certain job positions, even though the causal link between education and job performance may not be straightforward. This method relies on identifying patterns and associations to guide selection decisions.