the answer should be: The study's construct validity
A study's construct validity refers to the degree to which the experiments made in the study actually measures what it intended to measure. This can be seen on the study's standard of measurement and the correlation between variables used in the measurement and the actual phenomenon.
After hearing the claimed made by the teacher, Clarissa's immediately question whether the act of bullying can be measured.
She brought up an important point. The teacher never really specify what act considered as 'bullying'. Depending on people's perception, some consider a slight discomfort from social interaction might be considered as bullying, while other people might have the threshold.  Because of this, she can say that the study's construct validity is questionable.
 
        
             
        
        
        
Answer:
safest course of action is Yield the right of way to the other driver
Explanation:
when we driving vehicle and reach at busy intersection of road 
intersection is same grade or different grade junction, where two or more road meet 
at intersection yield sign indicate you that merging driver must prepare to stop if necessary then let driver on another approach proceed
and if  anyone enter at intersection of road and he is ahead of your vehicle and if you should have been first to go ahead
and you expect yield to other vehicle but you do not then you may be charge any resulting crash
so safest course of action is Yield the right of way to the other driver
 
        
             
        
        
        
Answer:
Since this research involves individual subjects who would be considered prisoners and examines the possible causes, effects, and processes of incarceration, the IRB should ensure that the additional requirements for prisoner research are met.
Explanation:
The Institutional Review Board or IRB, is an institution with the sole purpose of ensuring that the rights and welfare of research subjects are met and protected. Whenever there are human participants in a research, the IRB has to intervine and review the guidelines of the research and the research information per se in order to protect those who will be studied in it. Which is why the option provided as the answer best fits the IRB's role and purpose.