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HDFS 312W Test 1
hdfs 312w
46
Writing
Undergraduate 3
09/27/2009

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Term
theory
Definition
a set of assumptions that guide thinking
Term
theories used to: (2)
Definition
1. organize and explain a variety of specific facts or descriptions
2. generate new knowledge by focusing on thinking
Term
theories help to explain: (3)
Definition
1. how a particular problem develops
2. how an intervention can cause change
3. roadmap
Term
how to build a theory: (7)
Definition
1. observation
2. hypothesis
3. test
4. publication
5. verification
6. theory
7. prediction
*theories evolve
Term
social learning theory
Definition
how do adolescents come to use substances?
Term
intrapersonal characteristic theory
Definition
who is most likely to abuse substances?
Term
cognitive-affective theories
Definition
how do student expectations of substance abuse affect their actual use?
Term
components of research questions (3)
Definition
1. questions must address a relationship between 2 or more concepts
2. must be open to empirical tests
3. must be clearly and unambiguously stated
Term
components of a hypothesis (3)
Definition
1. explicitly states an expected relationship between 2 or more concepts
2. must be open to empirical tests
3. must be clearly and unambiguously stated
Term
constructs
Definition
broad concepts or topics of study (these are what we are actually interested in)
Term
variable
Definition
general class or category of objects, events, situations, or characteristics of a person
Term
situational variables
Definition
describe characteristics of a situation or environment
Term
subject or individual difference variables
Definition
special category of situational variables that describe the characteristics of people (ex. age, personality traits, gender)
Term
response variable
Definition
behaviors or responses of individuals that are being measured (ex. mood, reaction time)
Term
importance of operational definitions (2)
Definition
1. we can't conduct empirical research on abstract concepts-need a way to represent our constructs in a concrete manner
2. researchers can't replicate and expand upon our work without knowing how we represented our constructs
Term
operational definition-constructs and variables
Definition
definition of a variable in terms of the operations or techniques the researcher uses to measure or manipulate it
Term
link constructs and variables
Definition
ex. we are interested in studying aggression in adults (construct). we operationally define aggression as the score one receives on a self-report personality measure of aggression (variable)
Term
independent variable
Definition
manipulated variable
Term
dependent variable
Definition
observed or outcome variable
Term
population
Definition
entire "universe" of individuals to which a research question or finding pertains
Term
sample
Definition
set of elements drawn from and analyzed to estimate the characteristics of a population (subset of the pop. / small group of individuals)
Term
representative samples
Definition
representative if it approximates the population in relevant ways (does the sample look like a mini depiction of the pop.?)
Term
parameters v. statistics
Definition
-parameters are the pop. values
-statistics are estimates from the samples
WE ARE INTERESTED IN PARAMETERS
Term
generalizability
Definition
extent to which conclusions based on what has been observed can be applied to what has or has not been observed (deals with how well samples approximate populations)
Term
mundane realism
Definition
similarity of the experimental conditions to events that occur in the "real world"
Term
experimental realism
Definition
extent that experiment involves the participants and makes them take the experiment seriously
Term
key to generalizability
Definition
do we have any reason to expect that the results we have seen would not be seen given another set of circumstances?
Term
points to consider when evaluating samples (4)
Definition
1. what is the pop. being considered?
2. in what waysare the sample and the pop. similar/different?
3. who does the sample generalize to?
4. in what settings do the findings hold?
Term
Zimbardo (1971)
Definition
stanford prison experiment (psychological effects)
Term
Milgram (1963, 64, 65)
Definition
obedience experiment (electric shocking of people)
Term
ethical principles
Definition
standards for research set forth by a field's governing association
Term
deception
Definition
act of not giving a subject an accurate account of a study and the risks involved before they consent to take part in the experiment
Term
types of deception(4)
Definition
1. purpose of the study
2. presence of the experimenter
3. identity of experimenters
4. treatment of therapy
Term
deception acceptable when :
Definition
it preserves the study and is necessary for the preservation
Term
nonprobability sampling
Definition
every member of the pop. does not have an equal chance of being selected
Term
probability sampling
Definition
selection is random; every member of the pop. has an equal chance
Term
haphazard sampling
Definition
sample of convenience; take them where you d=find them
(ex. interested in pop. of college students-choose 500 from psu)
Term
quota sampling
Definition
sample is chosen to reflect the numerical composition of various subgroups of the pop.; no restrictions places on how the individuals are chosen
(ex. interested in work-family balance-sampes 100 employees of rural, urban, and suburban Walmarts)
Term
simple random sampling
Definition
every member of the pop. has an equal chance of being selected
(ex. interested in the study behaviors of hdfs 312w students in fall 2009-randomly select 25 names from roster)
Term
stratified random sampling
Definition
random sampling used to select participants; ensures that we sample individuals who make up a small proportion of the pop. that might be missed if we use random sampling
(ex. divide sample, then randomly sample using proportions-%'s)
Term
cluster sampling
Definition
sampling from groups or clusters that already exist; 2 stages: 1. randomly select clusters 2. randomly select within clusters
Term
empiricism
Definition
belief that we can learn the "truth" through observation; uses scientific method
Term
inquiry
Definition
a curiosity or a question about a phenomena
Term
empirical inquiry goals (3)
Definition
1. description
2. prediction
3. explanation
Term
logical positivism (3)
Definition
1. events are lawful and ordered
2. truth can only be dervied from direct observation
(denies the truth of traditional philosophies/challenges tenacious beliefs)
3. if we are able to observe events that follow laws, then we can make predictions and derive explanations
Term
scientific method (7)
Definition
1. statement/topic is proposed
2. literature review is conducted
3. conceptualize research ?s and hypotheses
4. propose research design
5. data are collected
6. data are analyzed
7. findings are shared with the scientific community
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