Answer: c) predictive validity
Explanation: predictive validity refers to how likely an event is to happen
 
        
                    
             
        
        
        
The number of degrees of freedom for the appropriate chi-square distribution in a test of independence is EQUAL TO THE SAMPLE SIZE, MINUS ONE. 
 
        
             
        
        
        
Lena is demonstrating "generativity".
<span>According to Erik Erikson, generativity refers to a worry for individuals other than self and family that for the most part creates amid middle age; particularly : a need to sustain and manage more youthful individuals and to the next generation.</span>
        
             
        
        
        
Answer: B
Explanation: Our ability to perform several tasks at once is quite limited. As much as it is possible to coordinate certain distinct body movements, when it comes to our attention, it becomes almost impossible.
In performing certain types of activities that need our full attention, it is critical to avoid any attitude that deviates our focus. And that makes the cell phone a big enemy of the conscious driver.