MEMORY
What is the numerical capacity for short-term memory according to George Miller?
7+/-2
___________________ is a research technique that questions a random sample of people to collect information about their attitudes or behaviors.
Survey method
The _________ of a dataset refers to the value that occurs at the highest frequency.
mode
A study to determine the degree of relationship between two events/things is called a _________________________.
correlational study
An experiment has two groups of subjects called: ________________________.
the control group and the experimental group
PEMDAS and "spring forward/fall back" are examples of _________________________.
mnemonic devices or memory tricks
In my experiment, I am going to investigate how sleep affects anxiety. The number of hours of sleep the subjects have is the ____________________ variable.
Independent
The _______________________ of a dataset measures how much scores deviate from the mean.
standard deviation
______________ refers to the repeatability of research findings and individual measures used.
Research shows that distributed rehearsal leads to better performance than massed rehearsal. Why?
If after studying at your desk you were able to recall information easier during a test you were displaying the __________________________.
context effect
___________________ research is concerned with discovering facts about phenomena. The data is collected through measurements and statistically analyzed. The goal of this research is to establish general laws over a variety of settings.
Quantitative
A correlation coefficient of 0 means that there is _______________________________.
no relationship between the two variables.
A study has ____________________ if the results can be generalized beyond the immediate study.
external validity
__________________ is the name of the ethics committees found in university settings that screen research proposals.
Institutional Review Board (IRB)
Mary cannot remember her current phone number, but she can remember her previous phone number. What type of interference is she experiencing?
Proactive interference
In the traditional learning experiment, the effect of practice on performance is investigated. Performance is the _________________ variable.
dependent
Most psychologists accept results as significant if they are at least ______% sure that the results did not occur by chance and the differences were the results of their manipulation.
95
Individual participant data must never be released and must remain anonymous due to participants having the right to ________________.
confidentiality
In a study on the effects of alcohol, the control group should be given _____________________.
A. high dosage of alcohol
B. a driving test before and after being given alcohol
C. no alcohol
C. no alcohol
__________________________ is the enhanced ability to retrieve information when you are in the same physical and/or emotional state as you were when you encoded the information.
state dependency
If I am conducting an experimental research project measuring the effects of stress on test performance, what are my independent and dependent variables? Which group would be exposed to the independent variable, the experimental group or the control group?
IV: stress
DV: test performance
Only the experimental group would be exposed to the IV/manipulation.
Which of the following coefficients of correlation indicates the strongest relationship between a set of variables?
A. -0.3
B. 0.00
C. -0.98
D. 0.90
C. -0.98
Why do psychologists use animals in research? (minimum 2 reasons)
1. animal behavior is of interest
2. biological and behavioral similarities between humans and animals
3. rapid development i.e. can study generations/heredity
4. more control i.e. diet, 24 hr monitoring
5. some things unethical for humans ok for animals
The chief function of the control group in an experiment is that it _________________________________________.
provides a point of reference against which the behavior of the experimental group can be compared