Statistical Tests
This statistical test is best to assess the differences of two groups at one time point.
What is an independent samples t-test?
In this normality test, the researcher looks at how close the data is to the line and not curved.
What is a Q-Q plot?
This is an example of a true experimental research design.
What is a randomized controlled trial?
In a Pearson's correlation analysis, the data has to be checked on "this" to determine if there is a linear relationship as part of the assumption to run.
What is a scatter plot?
This measure of central tendency describes the average value of a data set, calculated by adding all the values and dividing by the number of values.
What is the mean?
This value in odds ratios or risk ratios means that there is no change (e.g., no greater or lesser odds)
What is a 1?
In this normality test, the researcher looks for symmetry in the lines/boxes while also looking for any major outliers.
What is a Box-and-Whisker Plot?
This type of research design is considered the highest level of research to make conclusions.
What is a systematic review?
In a paired samples/independent samples t-test and ANOVA, the outcome must be this type of variable.
What is a continuous variable?
This term refers to the hypothesis that there is no significant difference or effect, often denoted as H0.
What is the null hypothesis?
This test assesses for a relationship of an independent variable and dependent variable when both categorical.
What is a chi-square analysis?
This is the p value for the two statistical tests looking to assess for if data is normally distributed or not.
What is greater than .05?
This type of research design is considered the gold standard for evaluating potential links between vaccines and outcomes, like autism, given the challenges of ethical IRB practices.
What is cohort or case controlled study?
When a researcher determines the data is "normally distributed" using the Shapiro-Wilk and Kolmogrov-Smirnov Test, they can move forward using this version of a test.
What is a parametric test?
This range of values, derived from sample data, is used to estimate the true population parameter within a certain level of certainty.
What is a confidence interval?
This statistical test value is used to determine inter-rater reliability of a categorical outcome variable (e.g., yes/no).
What is Cohen's Kappa Statistic?
In this test of normality, the researcher looks for a normal distribution and bell-shaped curve.
What is a histogram?
In this observational research design, a clinician provides similar treatments to a particular group of 5 patients and writes up results accordingly.
What is a case series?
This variable is an assumption that needs to be met for both the dependent and independent variable in a Chi-Square analysis indicating it is dichotomous.
What is a categorical variable?
In hypothesis testing, this term refers to the error of rejecting a true null hypothesis when the researcher should not have.
What is a Type I Error?
This test is used when comparing pre- and post-test results of the same group when the data is not normally distributed.
What is a Wilcoxon signed rank test?
This test of normality is used specifically for smaller sample sizes (<30) with a p value of >.05.
What is the Shapiro-Wilk test?
This is the statistical analysis is used when a researcher performs a randomized controlled trial and splits/randomizes individuals into three groups observing longitudinally.
What is a repeated measures ANOVA?
In a logistics regression, the dependent variable must a ______ variable, whereas in a linear regression, it must be a _______ variable.
What is categorical and continuous?
This is becoming the gold standard way of measuring statistical significance when analyzing data?
What is a confidence interval?