UVU BESC 3010 Exam Questions and Answers Graded A+
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UVU BESC 3010
UVU BESC 3010 Exam Questions and Answers Graded A+
When a distribution of raw scores is converted to z-scores, the shape of the distributions... - Answer-remains the same
When a distribution of raw scores is converted to z-scores, the mean and standard deviation of the distribution will be......
UVU BESC 3010 Exam Questions
and Answers Graded A+
When a distribution of raw scores is converted to z-scores, the shape of the
distributions... - Answer-remains the same
When a distribution of raw scores is converted to z-scores, the mean and standard
deviation of the distribution will be... - Answer-M=0, SD=1
If a person has a z-score of 1 on a test, then their score is... - Answer-one standard
deviation above the mean
What percent of the normal distribution is within one standard deviation of the mean
(i.e., |z| < 1)? - Answer-68%
If a distribution has a mean of 50 and a standard deviation of 5, then a raw score of 68
would have a z-score of... - Answer-3.6
If a person has a z-score of +2, what would their raw score be in a distribution with a
mean of 20 and a standard deviation of 3? - Answer-26
If the mean of a sample is 5 and the standard deviation is 2, then what is the z-score for
a raw score of 8? - Answer-1.5
What percent of the normal distribution is between z = -1 and z = 0? - Answer-34%
If a person got a z-score of -2 on a test that had a mean of 80 and a standard deviation
of 5, then what was their raw score? - Answer-70
If a distribution of 144 scores with a mean of 52 and a standard deviation of 12 is
standardized, then the new distribution's mean will be _____. - Answer-0
What are the values of skewness and kurtosis for a normal distribution? - Answer-
skewness=0, kurtosis=0
The analysis of variance (or ANOVA) is the preferred inferential test when you need to...
- Answer-Compare the means of three or more groups
If an ANOVA is statistically significant, what does that mean? - Answer-The variance of
the group mean is greater than 0
What is the symbol for the test statistic in ANOVA? - Answer-F
, What is the most common measure of effect size for ANOVA? - Answer-eta squared
In order to calculate eta-squared, you first need to know... - Answer-the sum of squares
(SS)
The analysis of variance is useful if you want to... - Answer-compare the mean incomes
of people in several different jobs.
The version of ANOVA that is used to compare, for example, the well-being of people
from the three largest countries in North America is called the... - Answer-one-way
ANOVA
What is the null hypothesis for ANOVA? - Answer-All group means are equal
Imagine a study that compared men and women (the gender factor) and who were
social liberal or conservative (the social attitudes factor) on levels of empathy. If there
were significant differences between men and women, regardless of social attitudes,
then the gender factor would be called... - Answer-a significant main effect
In order to conduct an ANOVA, the dependent variable (DV) must be... - Answer-an
interval or ratio level variable.
Which of the following numbers is a possible value for eta-squared? - Answer-.16 (Can
only be positive and 0-1)
Why is it better to use a one-way ANOVA than multiple t-tests to compare the means of
several groups? - Answer-Multiple t-tests inflate the type I (or false positive) error rate
If an ANOVA is conducted and eta-squared is .10, then... - Answer-10% of the variance
in the DV can be predicted by the IV(s)
A variable that classifies people into racial or ethnic groups is what level of
measurement? - Answer-Nominal
The number of students enrolled at UVU each year is an example of which level of
measurement? - Answer-Ratio
The amount of time that a person spends on social media each week in minutes is a(n)
_____ variable. - Answer-Ratio
If a person's sex is coded as Male = 0 or Female = 1, then that variable is at the _____
level of measurement. - Answer-Nominal
If a person's sex is recorded as "Male" or "Female," then that variable is at the _____
level of measurement. - Answer-Nominal
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