Thompson gave the example of a private school which restricts enrollment and thus participation.
By restricting participation to a one-time thing, your survey results can give you an average usage per person.
Some private environmental groups, however, are worried that the law weakens cleanup controls and restricts public participation.
It was introduced with a view to restricting Jewish participation in higher education.
Children like these activities and parents risk disappointing them by restricting participation.
Loss of power is associated with a lack of opportunity and political voice, which restricts participation in the community.
Washington should offer no encouragement to China's crude attempts to restrict participation on political grounds.
Eligibility limits would restrict participation to children from families with incomes below certain levels.
Some contests restrict participation to stations in a particular geographic area, such as a continent or country.
Catholics restrict participation to their members who are not in a state of mortal sin.