PSY 293 Final Exam

If I want to see if there's a relationship between 2 variables while controlling for a third variable I would use a?

A chi square goodness of fit test tells us if?

____ is an abstraction, representation of an object, one of the objects properties or a behavioral phenomenon

Y Hat is the name for the symbol which represents what value?

The scientific method is not a set of rules for obtaining knowledge.

Increasing our sample size increases ____ but has no effect on _____.

An intervening relationship is when a change in X is only associated with a change in Y (i.e. Z is unrelated)

R Squared (aka the coefficient of determination ) tells us?

If I want to see if there's a relationship between 2 variables measured at the interval/ratio level I would use a?

At the _____ level of measurement we group based on qualitative characteristics.

If we perform a pearson correlation and find an R value of -0.71 it means that?

If I want to compare 3 Levels of an IV and each participant only experienced 1 level and the DV was ordinal I would use?

Which of the following is partial eta squared not a measure of effect size for?

If we have an IV with 3 levels and each participant experiences all 3 we would use a _____ to analyze the data.

If p is less than .05 that means we would fail to reject the null hypothesis.

What is the purpose of post hoc tests when performing an ANOVA?

A _______ variable is the one we manipulate.

___% of a scores fall within 2 SDs - assuming a standard normal distribution.

If we perform a mixed Factorial ANOVA it means that?

When we perform a regression the b value can tell us if there is a positive or negative relationship betwene the IV & DV

Validity refers to our concern with ?

If we find a correlation it automatically means that one variable caused the other.

If we have an IV with 3 levels and each participant only experiences 1 we would use a _____ to analyze the data.

An R value of ___ or __ indicates a perfect relationship between x and y whereas a value of ___ suggests no relationship

At the ______ level of measurement we know the exact distance between measurements.

If we perform a Mann Whitney U test and p is less than .05 it means that?

If we use a within subjects design that means that each participant experiences ________ of the IV.

A negative relationship is when?

The larger the effect size is the _______ power we need to detect a difference/relationship.

Which of the following does not help us answer the question "is this different from that"?

What is a theory?

Which mathematical theorem states that with enough samples anything will approximate a normal distribution?

We have to use a series of _______ as post hoc tests for a Kruskal Wallis H Test.

Our goal as researchers is to extrapolate what we learn from a _______ and generalize it to the ________.

If I reject the null hypothesis when the null hypothesis is in fact true I have committed a ?

If the ANOVA table from a regression has a p value greater than .05 it means we should interpret the rest of the output.

A positive relationship is when?

We use measures of central tendency to try to describe what?

Which analysis helps us answer the question "can I predict this by knowing that"?

The difference between an ANOVA and a Factorial ANOVA is that we can only examine 1 IV with a factorial ANOVA

What is the most commonly used measure of variability?

A Z Test tells us if a group of scores differ from the population.

The relationship between theory and empirical research is?

Which of the following is a non-parametric paired sample t-test

The name of the measure that tells us the strength of a relationship found with a Chi Square Independence is?

The difference between a simple linear regression and multiple regression is that?

Effect size is a term that refers to?

I want to examine the impact of coffee (0, 1, 2 cups) and water (0 or 2 cups) on memory scores. I would use a?

If alpha is .05 and our p value is .04 we would say that we?

A spurious relationship is when a relationship between 2 variables is actually explained by a third variable.