**Type I Error** — A type of error that occurs when a null hypothesis is rejected although it is true. The error accepts the alternative hypothesis, despite it being attributed to chance. Also referred to as a false positive . Type I error rejects an idea that… … Investment dictionary

**Type II Error** — A statistical term used within the context of hypothesis testing that describes the error that occurs when one accepts a null hypothesis that is actually false. The error rejects the alternative hypothesis, even though it does not occur due to… … Investment dictionary

**Type II error** — The statistical error (said to be "of the second kind" or beta error) made in testing an hypothesis when it is concluded that a treatment or intervention is not effective when it really is. Sometimes referred to as a false negative. * * … Medical dictionary

**type I error** — noun Rejecting the null hypothesis when the null hypothesis is true. Syn: α error, alpha error, false positive, error of the first kind … Wiktionary

**type II error** — noun Accepting the null hypothesis when the null hypothesis is false. Syn: β error, beta error, error of the second kind, false negative … Wiktionary

**Type I error** — the error made in the statistical testing of a hypothesis by rejecting the null hypothesis when it is actually true. [1960 65] * * * … Universalium

**Type II error** — the error made in the statistical testing of a hypothesis by accepting the null hypothesis when it is actually false. * * * … Universalium

**type I error** — ˌtīp¦wən noun : rejection of the null hypothesis in statistical testing when it is true * * * the error made in the statistical testing of a hypothesis by rejecting the null hypothesis when it is actually true. [1960 65] … Useful english dictionary

**type II error** — ˌtīp¦tü noun : acceptance of the null hypothesis in statistical testing when it is false * * * the error made in the statistical testing of a hypothesis by accepting the null hypothesis when it is actually false … Useful english dictionary

**type I error** — noun Date: 1947 rejection of the null hypothesis in statistical testing when it is true … New Collegiate Dictionary