chi-square


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Related to chi-square: chi-square test

chi-square

 (kī′skwâr′)
n.
A test statistic that is calculated as the sum of the squares of observed values minus expected values divided by the expected values.

chi-square

n
(Statistics) statistics an inferential statistic common in survey research

chi′-square`

(ˈkaɪ)

n.
a statistical quantity equal to the summation over all variables of the quotient of the square of the difference between the observed and expected values divided by the expected value of the variable.
[1935–40]
References in periodicals archive ?
The first part indicates it is a chi-square test, and the number in parentheses represents the degrees of freedom.
Reduced chi-square test, r [chi square], is a test which has small values if the model fits the experimental data and big values otherwise.
We compared the groups on demographic characteristics using t tests for continuous variables and chi-square tests for categorical variables (Hays, 1994).
Enhanced student services/strategic investments were measured using chi-square tests to track entering freshman student persistence from semester to semester and year to year within the realigned academic unit before and after realignment.
In Chi-square analysis by tooth loss: depression, anxiety, and a combined category of depression or anxiety were significantly different in tooth loss (p less than 0.
The Pearson Chi-square test shows that there is no association between the two variables equality in provisions for skill development and gender as the value of significance is .
The frequencies of uncommon/rare versus established species of Odonata were compared between suborders (Anisoptera--dragonflies and Zygoptera--damselflies), habitat specificity, and primary habitat using chi-square analyses.
Statistical analysis (Pearson Chi-Square test) have been performed using the statistical programs SPSS.
We used a Chi-square test to analyze if number of eggs in the nest affected egg survival (all eggs survived or at least one disappeared) or hatching success (all eggs hatched or at least 1 failed), and if fledgling survival was associated with number of nestlings (all nestlings survived or at least 1 died).
For the longline study, an individual chi-square analysis was used to compare the effectiveness of magnet type compared to the control.