What is an independent variable?
The variable that is manipulated; the variable that is presumed to come first in a correlational study and has an effect on the DV.
________is a statistical estimate of the size or magnitude of a treatment effect.
Effect Size
Researchers repeat published studies to confirm the results in the process known as_________
Replication
A design where there is one IV with two levels and subjects are randomly assigned to one of the two conditions. There is a treatment and a control group.
Two Independent Groups Design
Or
True Experiment
Participants agree to participate in a study after receiving information about the nature, risks, benefits, and purpose of the study. This is called:
Informed Consent
Dr.Warren is conducting a factorial ANOVA. She has the following Factor Notation: 2X3X3. How many IVs does she have? How many total groups are there?
3 IVS 18 groups total
Why is matching used?
To control for the effect of extraneous variables.
Name three (3) reason why Zimbardo's Stanford prison experiment was unethical
Violated Respect for persons, Beneficence, etc.
Harmed participants
Violated confidentiality
**Daily Double**
Name two types of reliability.
Inter-rater, inter-item, test-retest reliability
What is a post hoc test and why is it used?
ANOVA test tells you whether you have an overall difference between your groups, but it does not tell you which specific groups differed - post Hoc tests do. Post Hoc tests indicate which group means are statistically significantly different from one another.
What is the minimum number of participants needed in each group of a between subjects design to detect a strong treatment effect?
10-30 participants per group
Data are empirical when they are_____, _____, and _____
observable or experienced, and verifiable through investigation.
Define cross-sectional and longitudinal designs.
Cross-sectional: is a research method where data are collected at the same time from people in different age categories.
Longitudinal: the study of changes in individual or group behavior over an extended period of time by repeatedly monitoring the same subjects.
H1: Participants in the therapy treatment condition or medication & therapy condition will have lower mean depression scores than those in the control condition. 1.) What is the IV and DV. 2.) What scale of measurement is the DV? 3.) What statistical analysis should be conducted?
1.) IV- Treatment conditions DV- Depression score. 2.) Interval or ratio 3.) One-way ANOVA
Emily would like to conduct a Factorial Anova In SPSS, but is unsure how to do so. Brief explain to her. She needs to click.Analyze->__________, then _________->
Analyze-> General linear model-> Univariate.
You receive the following results from a t-test: Test value=4
t=5.87
df=600
sig=.021
Report this in apa style.(I.e t and p value) Is this test significant?
t(600)= 5.87, p< .05. Yes, it is significant
Name 3 characteristics of a good hypothesis
Testable
Falsifiable
Accurate
Parsimonius