instrumental variable
常見例句
- The trick is to find an “instrumental variable” which can act as a proxy for one variable in a statistical analysis, but which is clearly unrelated to the others.
訣竅在于找到一種“工具性可變因素”，它能在統(tǒng)計(jì)分析中代替某種可變因素，但它顯然與其他可變因素?zé)o關(guān)。 - The instrumental variable in this instance allows a clear, credible estimate of the return from extra schooling for those most inclined to drop out from school early.
在這一研究中，對(duì)于那些傾向于盡早離開學(xué)校的人而言，使用輔助變量法就能夠得出清晰可信的結(jié)果。 - Mr Levitt’s analysis of crime during American election cycles, when police numbers rise for reasons unconnected to crime rates, is a celebrated example of an instrumental variable.
在本書中，Levitt對(duì)于美國(guó)大選期間犯罪率的分析（在此期間，警察數(shù)量的增長(zhǎng)并非是由于犯罪率上升）是輔助變量分析的一個(gè)絕佳例子。 - Instrumental variable analysis attempts to do just that, standing in contrast to the standard approach used in clinical studies.
FORBES: Why Medicaid is a Humanitarian Catastrophe - First, a brief discussion of instrumental variable analysis.
FORBES: Why Medicaid is a Humanitarian Catastrophe - Economists attempt to make the fudge factor as grounded in reality as possible, but instrumental variable analysis inevitably requires the analyst to give short shrift to the hard data and make assumptions about the differences between two populations, and how external factors (like insurance status) affect them.
FORBES: Why Medicaid is a Humanitarian Catastrophe 返回 instrumental variable