DEFINITIONS
A SMALLER COLLECTION OF UNITS FROM A POPULATION
What is "sample"?
What assumptions are necessary to use parametric data?
What are "additivity & lineraity; normality; homogenity of variance; and independence"?
1 - β
What is "calculate power"?
What test can you use if the p is below .05?
What is "Levene's test"?
Extra 100! Why does Field not recommend using this test?
The assumption that the sample data comes from a population that can be adequately modeled and has a fixed set of parameters.
What is "parametric"?
A COLLECTION OF UNITS THAT WE WANT TO BE ABLE TO GENERALIZE TO
What is "population"?
Which two are related:
Type 1
Type 2
Beta
Alpha
While box plots have a purpose, they do have a feature that helps you quickly screen for something. What is this something?
What is "checking for outliers"?
Historgram, box plot, q-q plots, and Wilk test can be used for this.
What is "checking for normal distribution"?
How do you identify 'skew' and 'kurtosis' in Q-Q plots?
Skew: when the dots snakes around the line (long tails)
Kurtosis: when the dots sag below or above line
STANDARD DEVIATION OF THE SAMPLING DISTRIBUTION ACROSS SAMPLES
What is "standard error?"
How do you know if the 95% CI is significant or not?
What is "having a p-value less than 0.05"
How do you write the results for a t test?
What is t(df)= t, p=_____
What is "two-tailed test"?
What three sums of squares are used in ANOVA?
SST, SSM, SSR
Bonus 300: What are the formulas for these three sums of squares?
The idea that regardless of the shape of the population, parameter estimates of that population will have a normal distribution provided the samples are "big enough"
What is "Central Limit Theorem"?
How are standard deviation and variance related?
Standard deviation is the square root of the variance.
Bonus 100: What is variance?
These three scores refer to small, medium, and large respectively.
r= .10
r= .30
r= .50
What is "measuring effect sizes"?
A test that tells you whether the explained variance in a set of data is significantly greater than the unexplained variance, overall.
What is "omnibus test"?
Regression does not use IV and DV. What do they use?
What is "predictor and outcome"?
The number of observations that are free to vary. One parameter must remain constant.
What is "degree of freedom"?
If the data is skewed, then what measure is better?
What is "median"?
Bonus 100: WHY?
Explain 'null hypothesis' and 'alternate hypothesis'
What is 'null hypothesis predicts that there is no impact from the predictor' and 'alternative hypothesis predicts that there is a significant effect'
This test requires some things to be met. These things include linearity, normal distribution, homocesdasticity, and independence.
What is "assumptions for ANOVA"?
The value of an observation expressed in standard deviation units. It is calculated by taking the observation, subtracting it from the mean of all observations, and dividing the results by the standard deviation. The values are 1.96, 2.58, and 3.29.
What are Z scores?