Every small business owner should have a budget that lays out the future course of the company's activities. A budget shows where the sales will come from and how the money will be spent, with the ...

Unit nonresponse and item nonresponse both occur frequently in surveys. Unit nonresponse is customarily handled by weighting adjustment, whereas item nonresponse is usually treated by some form of ...

When a project is running exactly as predicted, there is no time variance to worry about. When events are happening ahead of schedule or behind schedule, you have a variance, which could pose ...

When contextual features of test-taking environments differentially affect item responding for different test-takers and these features vary across test administrations, they may cause differential ...

DNV GL has launched a new online tool, Solar Resource Compass, that aggregates solar irradiance from many leading data providers to help users make more informed decisions about the data available and ...