Jeopardy Questions Flashcards
The sum on individual scores divided by the number of sample size
mean
using interval and ratio scaled data, it is the average variability from the mean
standard deviation
It compares the mean of one group against the mean of the same group but at different times
paired t-test
When examining differences of group means, there is one categorical IV with 3 or more categories and one continuous DV
one-way ANOVA
The extent to which two variables are related to each other
correlation
Uses nominal level data to compare actual number or frequency to the expected number
chi-square
This represents the examination of whether the sample mean falls in a small range of the bell-shaped curve
null hypothesis
This statistical method is designed to predict the outcome of one quantitative DV and one quantitative IV
simple linear regression
When most data are clustered around the mean with just a few outliers
normal distribution
It is the number by which the calculated statistics is compared in order to reject or not reject the null hypothesis
critical value
Specific parametric statistical method by which the relationship between two variables are quantified
Pearson Product Moment correlation
Researcher typically set at .05 to represent that there is 5% probability that differences occur by chance
significance level
nonparametric statistical test compares two groups with ordinal level data
Mann-Whitney test
The official name of statistical symbol that mathematically represent relationship that exists between two variables
correlation coefficient
In a relationship, when one variable increases the other decreases
negative correlation
This value is analogous to the mean (average) and represents 50th percentile of the distribution
median
This test can answer a research question with ordinal data and looking for change over time
Friedman test
This statistical test typically compares two or more groups with ordinal level data and analogous with one-way ANOVA.
Kruskal-Wallis test
Purpose of this statistical methods is to equalize differences between one categorical IV and one continuous DV by controlling for a potentially confounding variable.
ANCOVA
Statistical method can examine the difference in measurements between two groups taken at year 1, year 2, and year 3
Repeated measures ANOVA (within-subjects)
This statistical methods would be used to answer the research question what is the difference between children with autism, ADHD, and LD in the areas of visual perceptual skills, sensory modulation abilities, and functional performance after controlling for IQ.
MANCOVA
The mass of distribution is on the left and outliers are on the right
Positively skewed or skewed to the right
When critical regions are to the far left and right and there are two chances to reject the null hypothesis
two-tailed hypothesis
This statement predicts that the independent variable will have an effect on the dependent variable, but doesn’t specify in which direction the effect will take place
non-directional hypothesis
