Show:
Validity & Research Design
Research Ethics
Correlation
Hypothesis Testing I
Hypothesis Testing II
100
You would use a ______ research design to answer the following question: How many people living in Vegas engage in risky sexual behavior? And you would use a ____ research design to answer the following question: Do people who have lived in Vegas for longer periods of time engage in more risky sexual behaviors?
What is Descriptive and Correlational?
100
This study involved the failure of healthcare professionals to provide treatment to men with syphilis.
What is the Tuskegee Study?
100
A correlation coefficient of +1.00 exemplifies a ___________ relationship.
What is perfect positive?
100
Cohen's D, Percentage of Variance (r and eta squared), and confidence intervals are all methods for measuring _____.
What is Effect Size?
100
The ____ hypothesis essentially means that there is no difference between two (or more) groups.
What is Null?
200
Using college students in research can be a threat to _____ ____ because results may not generalize to other populations.
What is External Validity?
200
A committee that examines all proposed research with respect to its treatment of human participants. Approval must be obtained by this committee before any research is conducted with human participants.
What is an IRB?
200
A researcher reports that there is no relationship between two variables. In other words, r would be equal to or near____.
What is zero?
200
_____ statistical tests use ordinal or nominal data and ____ statistical tests use ratio or interval data.
What is Nonparametric and Parametric?
200
True or False: The following represents a significant difference between groups: t(78) = 1.59, p = .30
What is False?
300
An extraneous variable that changes systematically along with the two other variables being studied. This variable provides an alternative explanation for the observed relations between two variables and is a threat to internal validity.
What is a Confounding Variable?
300
The practice of keeping strictly secret and private the information obtained from individuals during a research study.
What is Confidentiality?
300
The following is an example of a _____ ______: As the number of glasses of water consumed increases, body weight decreases.
What is a negative correlation?
300
True or False: Nonparametric tests can be used to gather information about mean differences.
What is False?
300
P refers to the probability that your results _______.
What is "Happened by chance?"
400
Dr. Belgrave is conducting a study examining beliefs about illicit drug use and risky sexual behaviors. However, during her study, the university that she is collecting her sample from runs an anti-drug use campaign that focuses on decreasing the spread of STDs. Dr. Belgrave's experiment may possibly be confounded by _____ effects.
What is History?
400
The presenting of misinformation about a study to study participants - usually about the purpose of the study.
What is Active Deception?
400
A researcher reports a positive relationship between ice cream sales and homicide rates. However the researcher suspects that outdoor temperature may also be influencing this relationship. This is an example of the:
What is Third Variable Problem?
400
A t-test provides information about differences in the _____ of two groups.
What are Means?
400
True or False: The following represents a significant difference between groups: t(122) = 3.79, p <.001
What is True?
500
Selection bias is a threat to ____ but assignment bias is a threat to ______.
What is external validity and internal validity?
500
This is required to be used if deception was employed in a research study. This practice generally happens at the conclusion of study participation and can involve conveying what the study was actually about and justifying why deception was used.
What is Debriefing?
500
Which of the following correlations shows the highest degree of relationship? A. .91 B. -.97 C. -.03
What is B. -.97?
500
This test is appropriate to use to compare the three means obtained from a within subjects research design.
What is a repeated measures ANOVA?
500
This type of test is used when you are trying to determine if there is a difference between two groups and the data consists of proportions/frequencies.
What is a Chi Square Test?