Investors understand intuitively that some stocks are riskier than others. The capital asset pricing model attempts to quantify the common perception of risk using a term called beta. By understanding ...

Regression imputation is commonly used to compensate for item nonresponse when auxiliary data are available. It is common practice to compute survey estimators by treating imputed values as observed ...

This is a preview. Log in through your library . Abstract Experiments that assign intact groups to treatment conditions are increasingly common in social research. In educational research, the groups ...