Hypothesis Testing
The most common alpha level used in most psychology research.
What is 0.05?
The number of individuals in the sample.
What is N (I'll accept n)?
The stability or consistency of a measure.
What is reliability?
As scores on variable X go down, scores on variable Y also go down. This describes a ___________ correlation.
What is a positive correlation?
A usually very large set of people about which we are interested in drawing conclusions.
What is the population?
A prediction about the population stating that a treatment has no effect or that an effect is zero.
What is the null hypothesis?
The mean of the population
What is mu?
The likelihood that inferences made in one study can be generalized to other relevant populations and settings
What is external validity?
A correlation becomes stronger as r gets closer to these two values.
What are 1 and -1?
The upcoming 2026 Olympics will be held in this country.
What is Italy?
The decision that is made when z-obt is more extreme than z-crit.
What is "to reject the null hypothesis"?
This song by Lady Gaga was ranked the #1 song for 2025 by Rolling Stone Magazine.
What is Abracadabra?
The level of confidence with which we can infer causal relations between variables in a research study.
What is internal validity?
The correlation coefficient is used to measure the ______ and ______ of the linear relationship between two factors.
What are the strength (or magnitude) and direction?
A term used to describe when Pps are selected because they are easy to recruit.
What is convenience sampling?
This type of test examines whether the sample ("test") statistic is extreme in a specific direction.
What is a one-tailed test?
The variance in a sample.
What is s-squared?
Random assignment to treatment group is one way to increase this.
What is internal validity?
When examining a correlation, this indicator quantifies how much variance in one variable is explained by the other variable.
What is R-squared/The Coefficient of Determination?
This expansion women's basketball team just finished its first season in the WNBA and became the most valuable franchise in the league.
Who are the Golden State Valkyries?
In a sampling distribution from a population in which the null hypothesis is true, the name for the part of the distribution that contains low-probability values.
What is the critical region?
In Zootopia and its sequel (recently released), this is the voice actor for the fox by the name of Nick Wilde
Who is Jason Bateman?
The index most commonly used to determine the internal consistency of a scale.
What is Cronbach's alpha?
Whereas calculating variance involves the sum of squares (SS), calculating covariance involves this conceptually parallel index, abbreviated SP.
What is the Sum of Products?
Term used to describe when every member of a population has an equal chance of being a study participant.
What is random sampling?