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What test?
Random
Correlation
From the Beginning
Lucky Guess
100
You have collected nominal data on gender and preference of car color. This is the type of analysis that would be appropriate to conduct.
Chi-square
100
The type of variable reported in frequency tables.
nominal or categorical
100
A correlation coefficient will not tell us about this, but it can be confirmed with a bivariate plot.
linearity
100
The middle value in a set of scores arranged from lowest to highest is this.
median
100
A result that is statistically significant at the .05 level would be reported in a research article as this.
p<.05
200
The formula Ŷ = a + (b1)(X1) + (b2)(X2) + (b3)(X3) is the formula for
multiple regression
200
If the variance is 9, then the standard deviation is this.
3
200
A relationship where high values of x are associated with low values of y and low values of x are associated with high values of y.
negative correlation
200
The two descriptive statistics that are always reported for continuous variables.
standard deviations and means
200
Increasing sample size is one way to increase this.
power
300
I have one dichotomous variable as a predictor and a continuous variable as an outcome with treatment and control groups.
t-test for independent means
300
A health psychologist is interested in the effectiveness of a new exercise on reducing the rate of heart attacks because the exercise requires no equipment and, therefore, can be done without cost. This would be the research hypothesis.
The exercise will reduce the rate of heart attacks.
300
If you were interested in the relationship between number of hours worked per week and college grades, this is the type of analysis you would conduct.
correlation
300
N-1 in t-test distributions
degrees of freedom
300
If an ANOVA result is significant, you would perform one of these to examine which means are significantly different from each other.
post-hoc test
400
I am investigating the relationship between grades and distance to school.
correlation
400
An educational psychologist who gives the same test twice to the same people to check the accuracy of the test is assessing this.
reliability
400
Your APA statement should include an interpretation of the correlation ONLY when this is true.
only if they are significant
400
If you exceed this, you can reject the null hypothesis.
critical values or cutoff scores
400
If your findings are not statistically significant, then this is your conclusion.
inconclusive
500
I have a categorical variable (no time spent in jail, little time spent in jail, lifetime spent in jail) and want to investigate the effect of this variable on happiness.
ANOVA
500
This is the type of sample that would be ideal to have.
random sample
500
The type of inferential test that we use for correlations is this.
t-test
500
These are calculated to compare scores obtained from two different scales.
z-scores
500
The probability of finding statistical significance when the research hypothesis is true.
power