PSYC 3290: Final Exam Review Questions And Correct Answers.
1 view 0 purchase
Course
PSYC 329
Institution
PSYC 329
What does a 95% confidence interval mean? - Answer A 95% confidence interval is a range of values that you can be 95% certain contains the true mean of the population. 19/20 times the CI will contain the true population parameter.
Standard Error - Answer Summarizes the breadth or spread of...
PSYC 3290: Final Exam Review
Questions And Correct Answers.
What does a 95% confidence interval mean? - Answer A 95% confidence interval is a range of values
that you can be 95% certain contains the true mean of the population. 19/20 times the CI will contain
the true population parameter.
Standard Error - Answer Summarizes the breadth or spread of the mean heap or its curve (the
inferential statistic for the standard deviation of the sample mean)
Formula for the SEM - Answer Population standard deviation divided by the square root of the sample
size.
Central Limit Theorem - Answer The theory that, as sample size increases, the distribution of sample
means of size n, randomly selected, approaches a normal distribution.
Confidence Interval - Answer The range of values within which a population parameter is estimated to
lie
Effect Size - Answer The amount of anything that's of research interest
Paired Design - Answer Uses a single group of participants, each of whom contributes a pair of data
values, one for each of the conditions being compared
Within-Groups IV - Answer All levels of the variable are seen by a single group of participants
The CI on the Difference - Answer Is shorter for paired design compared to between-subjects design
Cohen's d - Answer A measure of effect size that assesses the difference between two means in terms
of standard deviation, not standard error
, Formula for Cohen's d - Answer Effect size (M2 - M1) divided by an appropriate standard deviation
What is the standardizer used in paired design Cohen's d? - Answer Average standard deviation of s1
and s2
Paired t Test - Answer A test designed to determine the statistical difference between two groups'
means where the participants in each group are either the same or matched pairs.
Carryover Effect - Answer In a paired design is any influence of the first measurement on the second
Counterbalancing - Answer In a paired design is the assignment of different participants to different
orders of presentation, or different versions of the same condition, to reduce carryover effects
Power for Paired Designs - Answer Greater as the pretest and posttest scores are correlated
One-Way Independent Groups Design - Answer Has a single IV with three or more levels, and each
level is experienced by an independent group of participants
Types of Variability is a One-Way ANOVA - Answer Between-subjects variability (random sampling and
true) and within subject variability (random sampling)
F Statistic - Answer A ratio of two measures of variance: (1) between-groups variance, which indicates
differences among sample means, and (2) within-groups variance, which is essentially an average of the
sample variances
Comparison - Answer The difference between two means
Sum of Squares Between - Answer A measure of how much dispersion there is among the means of the
samples in an experiment
Sum of Squares Within - Answer A measure of how dispersed the scores are inside the samples of an
experiment
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller TestSolver9. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
