But those studies defined optimism differently, as a sense of control over events in life.

When collecting information on how long cancer patients live, some studies define survival as living 5 years after the diagnosis.

Each study uses different methods and defines autism slightly differently.

The study defined and calculated a measure of policy prevalence.

More intense studies from 2002 to 2004 have further defined the occupied habitat.

Both studies defined a juvenile as anyone younger than 18 at the time of the offense or arrest.

Note that this study defines a small business as one with fewer than 100 employees.

The study defined action as speaking to a doctor or being examined.

The study defined "graduated players" as those who entered college in 1984 and received their degrees by 1989.

The study defined as low-income any household earning less than $10,000 a year in 1989 terms.