That's a spicy definition
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What is a construct?
This is a test of homogeneity of variance
What is Levine's test?
What are examples of sources of error?
Measures of central tendency for the data set: 4, 5, 8, 8, 3, 4, 5, 4, 4
Mode: 4
Median: 4
Mean: 5
Explain what you see on a z-table
What is chunks of the distribution/a segment of the area under the curve/percentile & a z-score
This is an inference or explanation about one or more phenomenon
What is a theory?
Describe 4 ways you can decide what statistical test to use
What are:
Number of groups
Parametric or non-parametric data
Number of IV's/DV's
Design (within, between...)
Variance between the groups
Normality assumed?
These can be defined as: sensitive to outliers, restricted range, 3rd variables, correlation does not equal causation, problem of bidirectionality
What are the issues with a correlational design?
With a variance of 3.25, an N of 9, and average of 5 calculate the standard deviation
What is the square root of 3.25
This is setting your alpha & stating at what point you would accept or reject your null (if it falls outside our critical values)
What is a decision rule?
This is a testable question or statement based on a real world phenomena
What is a hypothesis?
The theoretical comparison in an ANOVA
What is explained group variance over unexplained variance?
Rian would say this means "going all in on red"; putting all of your probabilities in one direction
What is the reason why a directional hypothesis has more power?
Name the data you need to calculate the SEM
What is the Standard Deviation and the N value
What is a failure to reject the null, no significance; 50% of the time the results would occur by chance
p = .50 at the end of the statistical analysis
What are operational definitions?
When running a statistical analysis, the p-value tells you this - but does not tell you this
What is the p value tell you the probability of finding things that aren't there or the probability that your results occur by chance but it does not tell you if it's right/worked/good
This means your research is double-blinded, randomized, and placebo controlled
What is the gold standard of research?
Explain the data needed to compare 2 scores that are out of a different number of items
What is the average, the standard deviation and the individual scores
What is a 0 correlation?
This is the ability to detect an effect/see how much your experiment's probabilities fall in a certain direction
What is power?
This is where the true mean will fall in the population 95% of the time
What is 95% Confidence Interval?
Most physiological and psychological variables fall on a normal curve, shows where you fall in relation to other, means there are no significant outliers
What are the reasons psychologists like normal curves?
These are the ingredients for a confidence interval
What is the SEM, average, confidence percentage and a z-score
Unique personal identifier numbers, collecting a limited amount of personal data, destroying data, double-blinding
What are ways we protect participant anonymity?