Shared Flashcard Set

Details

Research Methods Final Exam
Research Methods
71
Other
Undergraduate 2
04/27/2009

Additional Other Flashcards

 


 

Cards

Term
Goals of Science
Definition

1. to describe behavior

2. to predict behavior

3. to determine causes of behavior

4. to understand behavior

Term
Induction
Definition
data ---> conclusions
Term
Deduction
Definition
theory ---> specific predictions
Term
Cannons of Science
Definition
  • determinism - lawfulness in nature
  • empiricism - making observations
  • parsimony - simplest solution is usally accepted
  • testability - theories should be testable and falsifiable
Term
Parts of a Research Article
Definition

1. abstract

2. introduction

3. methods

4. results

5. discussion

Term
Three Basic Ethical Principles
Definition

1. Beneficience - Assessment of Risks and Benefits

2. Respect for Persons (autonomy) - Informed Consent

3. Justice - Selection of Participants

Term
Exempt Research
Definition
no risk, must still submit to IRB, anything with anonymity
Term
Minimal Risk Research
Definition
risks of harm no greater than daily life or routine tets
Term
Greater risk research
Definition
any stress, invasion of privacy, full IRB review
Term
Situational variable
Definition
characteristics of situation or environment
Term
Response variable
Definition
responses or behaviors of individuals
Term
Participant/subject variable
Definition
differences in individuals
Term
Mediating variables
Definition
psychological processes that mediate effects on variable
Term
Independent variable
Definition
is manipulated
Term
Dependent variable
Definition
is measured
Term
Three Required Elements of Causality
Definition

1. temporal precedence

2. covariation between variables

3. eliminate plausible alternative explanations

Term
Four Validities
Definition

1. Construct

2. Internal

3. External

4. Conclusion

Term
Construct Validity
Definition
adequacy of the operational definition of the variable
Term
Internal Validity
Definition
ability to draw conclusions about causual relationships
Term
External Validity
Definition
generalizability
Term
Conclusion
Definition
extent to which conclusion about relationship between variables are reasonable
Term
Reliability
Definition
consistency or stability of measure
Term
Interrater reliability
Definition
degree to which independent raters agree on an observation
Term
internal consistency
Definition
degree to which all specific items of a measure behave the same way
Term
Types of Construct Validity
Definition

1. Face

2. Predictive

3. Concurrent

4. Convergent

5. Discriminant

Term
Face validity
Definition
does it look like it measures what it appears to
Term
Predictive validity
Definition
is measure associated with variables it should predict
Term
concurrent validity
Definition
does measure differ between groups it ought to
Term
convergent validity
Definition
is measure associated with established measures of the same construct
Term
discriminant validity
Definition
is measure not associated with measures of other constructs
Term
Nominal
Definition
no numerical or quantitative ... categories
Term
Ordinal
Definition
rank order the levels of the variable
Term
interval
Definition
difference between numbers on the scale is meaningful
Term
ratio 
Definition
has absolute zero point
Term
systematic observation
Definition
careful observation of one or more specific behaviors in a particular setting .. a coding system must be developed
Term
case study
Definition
information on rare, unusual, noteworthy condition .. cannot identify causes
Term
response set
Definition
tendency to respond to all questions from a particular perspective rather than provide direct answers
Term
graphic rating scale
Definition
requires a mark along a continuous 100-milimeter line anchored with descriptions
Term
semantic differential scale
Definition
meausre of the meaning of concepts where people rate on a series of bipolar adjectives using 7-point scales
Term
Types of Probability Sampling
Definition

1. simple random

2. stratified random

3. cluster

Term
Types of Nonprobability Sampling
Definition

1. haphazard sampling

2. purposive sampling

3. quota sampling

Term
simple random sampling
Definition
every member of population has equal chance
Term
stratified random sampling
Definition
population divided into subgroups and then random sampling from each group
Term
cluster sampling
Definition
clusters of individuals identified and then an entire cluster is part of the sample
Term
haphazard sampling
Definition
gather from a convenient time or location
Term
purposive sampling
Definition
sample of people who meet predetermined criteria
Term
quota sampling
Definition
choose to reflect the numerial composition of various subgroups (stratified w/ no random)
Term
sampling frame
Definition
actual population of individuals from which a random sample will be drawn
Term
confounding variables
Definition
varies along with the IV makes it impossible to determine which is responsible for the observed effect
Term
posttest only design
Definition
solely measure the effect of the IV on the DV ... must make sure to eliminate selection differences
Term
selection differences
Definition
differences in the type of subjects who make up each group in an experimental design
Term
pretest posttest design
Definition
makes it possible to determine if the groups were in fact equivalent in the beginning
Term
independent groups design
Definition
participants randomly assigned so that they participate in only one group
Term
repeated measures design
Definition
each participant is measured after receiving each level of the IV
Term
counterbalancing
Definition
method of controlling for order effects by either including all orders of treatment presentation or randomly determining the order for each subject
Term
matched pairs design
Definition
first match on a participant characteristic and then randomly assign to only one level of the IV
Term
ceiling effect
Definition
the IV appears to have no effect because the task is too easy
Term
floor effect
Definition
task is so difficult that hardly anyone can perform well
Term
demand characteristics
Definition
any feature of an experiment that might inform the particpants of the purpose of the study
Term
factorial designs
Definition
designs that have more than one independent variable .. all levels of each IV are combined
Term
main effect
Definition
the effect each IV has by itself
Term
interactions
Definition
when the effect of one IV depends on the particular level of another
Term
IV x PV designs
Definition
investigates how different types of participants respond to the same manipulated variable
Term
moderator variable
Definition
influences the relationship between two other variables in a factorial design
Term
Power equation
Definition
1 - p(Type II error)
Term
Type II error
Definition
when accept the null but the research is actually true
Term
Type I error
Definition
reject the null but the null is actually true
Term
t proportion
Definition
group difference / within group variability
Term
degrees of freedom
Definition
total # of participants - # of groups
Supporting users have an ad free experience!