Related Experiment Video

Updated: Aug 15, 2026

Assessment of Child Anthropometry in a Large Epidemiologic Study
09:36

Assessment of Child Anthropometry in a Large Epidemiologic Study

Published on: February 2, 2017

[Predictive value of biometry in early pregnancy in comparison with birth weight]

F Chiavazza, D Fiaschetti, V De Vita

    Acta Bio-Medica De L'Ateneo Parmense : Organo Della Societa Di Medicina E Scienze Naturali Di Parma
    |January 1, 1985
    PubMed

    More Related Videos

    Chromosome Screening of Human Preimplantation Embryos by Using Spent Culture Medium: Sample Collection and Chromosomal Ploidy Analysis12:32

    Chromosome Screening of Human Preimplantation Embryos by Using Spent Culture Medium: Sample Collection and Chromosomal Ploidy Analysis

    Published on: September 7, 2021

    Generation of the Early-Gestational Maternal Immune Activation Mouse Model to Assess Prenatal Inflammation on Neurodevelopment08:53

    Generation of the Early-Gestational Maternal Immune Activation Mouse Model to Assess Prenatal Inflammation on Neurodevelopment

    Published on: March 24, 2026

    Related Concept Videos

    Probability Laws01:49

    Probability Laws

    Overview
    Regression Toward the Mean01:52

    Regression Toward the Mean

    Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when researchers try to extrapolate results...
    z Scores and Area Under the Curve01:17

    z Scores and Area Under the Curve

    z scores are the standardized values obtained after converting a normal distribution into a standard normal distribution. A z score is measured in units of the standard deviation. The z score tells you how many standard deviations the value x is above (to the right of) or below (to the left of) the mean, μ. Values of x that are larger than the mean have positive z scores, and values of x that are smaller than the mean have negative z scores. If x equals the mean, then x has a z score of zero.
    P-value01:10

    P-value

    P-value is one of the most crucial concepts in statistics.
    P-value stands for the probability value.  P-value is the probability that, if the null hypothesis is true, the results from another randomly selected sample will be as extreme or more extreme as the results obtained from the given sample.
    A large P-value calculated from the data indicates to  not reject the null hypothesis. But a higher P-value does not mean that the null hypothesis is true. The smaller the P-value, the more unlikely...
    Coefficient of Correlation01:12

    Coefficient of Correlation

    The correlation coefficient, r, developed by Karl Pearson in the early 1900s, is numerical and provides a measure of strength and direction of the linear association between the independent variable x and the dependent variable y.
    If you suspect a linear relationship between x and y, then r can measure how strong the linear relationship is.
    What the VALUE of r tells us:
    The value of r is always between –1 and +1: –1 ≤ r ≤ 1.
    The size of the correlation r indicates the strength of the linear...
    Sensitivity, Specificity, and Predicted Value01:13

    Sensitivity, Specificity, and Predicted Value

    In healthcare diagnostics, laboratory tests play a crucial role in identifying and diagnosing a wide range of medical conditions. However, interpreting test results is not always straightforward. An abnormal test result does not always confirm the presence of a disease, just as a normal result does not guarantee its absence. To assess the reliability of these diagnostic tools, healthcare practitioners rely on two key statistical indicators: sensitivity and specificity.
    Sensitivity is the...