# bivariate analysis

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Related to bivariate analysis: multivariate analysis, univariate analysis

## analysis

[ah-nal´ĭ-sis] (pl. anal´yses)
separation into component parts.
activity analysis the breaking down of an activity into its smallest components for the purpose of assessment.
bivariate analysis statistical procedures that involve the comparison of summary values from two groups on the same variable or of two variables within a group.
blood gas analysis see blood gas analysis.
chromosome analysis see chromosome.
concept analysis examination of the attributes of a concept as it occurs in ordinary usage in order to identify the meanings attached to the concept.
content analysis a systematic procedure for the quantification and objective examination of qualitative data, such as written or oral messages, by the classification and evaluation of terms, themes, or ideas; for example, the measurement of frequency, order, or intensity of occurrence of the words, phrases, or sentences in a communication in order to determine their meaning or effect.
correlational analysis a statistical procedure to determine the direction of a relationship (positive or negative correlation) between two variables and the strength of the relationship (ranging from perfect correlation through no correlation to perfect inverse correlation and expressed by the absolute value of the correlation coefficient).
analysis of covariance (ANCOVA) a variation of analysis of variance that adjusts for confounding by continuous variables.
data analysis the reduction and organization of a body of data to produce results that can be interpreted by the researcher; a variety of quantitative and qualitative methods may be used, depending upon the nature of the data to be analyzed and the design of the study.
ego analysis in psychoanalytic treatment, the analysis of the strengths and weaknesses of the ego, especially its defense mechanisms against unacceptable unconscious impulses.
gait analysis see gait analysis.
gastric analysis see gastric analysis.
multiple-locus variable number of tandem repeat analysis (MLVA) a laboratory tool designed to recognize tandem repeats and other qualities in the genome of an individual to provide a high resolution DNA fingerprint for the purpose of identification.
multivariate analysis statistical techniques used to examine more than two variables at the same time.
power analysis a statistical procedure that is used to determine the number of required subjects in a study in order to show a significant difference at a predetermined level of significance and size of effect; it is also used to determine the power of a test from the sample size, size of effect, and level of significance in order to determine the risk of Type II error when the null hypothesis is accepted.
qualitative analysis the determination of the nature of the constituents of a compound or a mixture of compounds.
quantitative analysis determination of the proportionate quantities of the constituents of a compound or mixture.
SNP analysis analysis of single nucleotide polymorphisms to assess artificially produced genetic modifications or identify different strains of an organism.
transactional analysis a type of psychotherapy based on an understanding of the interactions (transactions) between patient and therapist and between patient and others in the environment; see also transactional analysis.
analysis of variance ANOVA; a statistical test used to examine differences among two or more groups by comparing the variability between the groups with the variability within the groups.
variance analysis the identification of patient or family needs that are not anticipated and the actions related to these needs in a system of managed care. There are four kinds of origin for the variance: patient-family origin, system-institutional origin, community origin, and clinician origin.
vector analysis analysis of a moving force to determine both its magnitude and its direction, e.g., analysis of the scalar electrocardiogram to determine the magnitude and direction of the electromotive force for one complete cycle of the heart.

## bivariate analysis

One of the simplest forms of statistical analysis investigating the relationship between two variables (X, Y), which can be displayed as a percentage table, a scatterplot or as a calculation of a correlation coefficient.
References in periodicals archive ?
In the bivariate analysis, mHAQ score and DAS28 were statistically associated with OP, and DAS28 and mHAQ score were not independent risk factors for OP as far as the relationship between mHAQ score and OP could be covered by DAS28.
Having a perineal tear approached significance with AI at 6 weeks after delivery on bivariate analysis, but not on multivariate analysis.
According to the bivariate analysis, significant differences were revealed between the existence of dysmenorrhea and age of menarche, family history, different grades of PMS (psychological) and the presence of PMS (physical) among women in the study population.
The bivariate analysis showed frequency of consumption of fruit-based drinks and length of time taken to consume acidic drinks were statistically significant positive risk factors for erosion.
5%, and neither front thigh nor medial calf skinfold thickness was associated with performance in the bivariate analysis.
Using the bivariate analysis, the correlations between maternal and direct additive genetic effects for BWTDO and BWT6W performances were estimated to be -0.
As found above in bivariate analysis, RX do not Granger cause RGDP at 95 percent level of confidence, whereas RGDP does Granger cause RX at 99 percent level of confidence in case of trivariate analysis.
Pre-emptive anti-enterococcal therapy (AMP, TZP, meropenem/imipenem or vancomycin) was significantly associated with mortality in bivariate analysis (OR = 1.
The direction of the association, as seen in the bivariate analysis, was positive and statistically significant.
On bivariate analysis, there was a significant association between serum selenium concentration and the prevalence of hypertension and other cardiovascular disease, including peripheral vascular disease, myocardial infarction, and congestive heart failure.
The bivariate analysis indicated that carers' age, helpfulness of the foster child, information provided at the time of placement and adult support increased the odds of foster caregivers' perceptions of fulfilling their caregiver role.
Results obtained from the bivariate analysis of the relationship between physical symptoms and exposure to odor suggest that exposure to odor as a result of renovation was not associated with most physical symptoms commonly described in the literature.

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