CH. 12-13 Flashcards
(29 cards)
Non-experimental research methods include
Naturalistic observations,
case studies,
correlational research,
survey research
Naturalistic observations are…
observations in nature.
1) continuous or discontinuous
2) non-reactive
3) commonly used in ethology.
4) also called unobtrusive measures
Strengths/weaknesses of Naturalistic observation…
Strengths:
high external validity, non-reactive behavior, simple design, creates new problems for study, used to follow up on experimental research to test external validity.
Weaknesses:
cannot infer cause/effect relationships
level of measurement is low
Case studies are…
intense investigation of single case. Retrospective case studies (clinical) depend on memory of patient.
deviant case analysis studies: identical twins raised separately. Used in nature/nurture studies.
Strengths/weaknesses of case studies are….
Strengths:
helps individual, major source of experimental hypotheses.
Weaknesses:
can’t infer cause and effect
dependent upon unbiased memory/recall, which can be faulty.
Survey research is…
self-explanatory.
telephone, email, online, etc.
demographic info, subject characteristics, SES, age, etc.
attitudes or behaviors (ex: political attitudes)
find out how demographics are related to behaviors.
Strengths and Weaknesses
Strength:
easier to collect data, and collect large amounts
Weakness:
cannot infer cause/effect
highly reactive method (ex: Kinsey 40’s and 50’s.)
easy to fabricate or exaggerate
representative samples are difficult to attain
Correlational research is
a technique for assessing a relationship.
Pearson R.
gives you a numerical value of magnitude and direction of relationships between variables.
0-+/-1.
Strengths/Weaknesses of Correlational research are….
does not infer causation or rule out causation.
doesn’t matter if it’s as high as 1 or as high as 0. No direct relationship w/causation.
low correlation values can appear as a result of truncated range problem.
what is a truncated range problem?
ex: weight gain between 1-20 is much more than weight from 20-40. (We hope.)
This would result in low Pierson r values.
non-representative samples can result in a low peirson r value because…
two variables that represent a concept and the variables don’t actually represent what they are supposed to.
non-linearity variables can result in low r-values because…
the variable is curvalinear because the formula was not meant to compute the relationship between anything other than linear.
avoid non-linearity variables by…
graphing it out.
12 Major Char: Design strategies are…
1) naturalistic theory
2) emergent design flexibility
3) purposeful sampling
12 Major Char: Data-collection and fieldwork strategies are…
4) qualitative data
5) personal experience and engagement
6) empathic neutrality and mindfulness
7) dynamic systems
12 Major Char: Analysis strategies are…
8) unique case orientation
9) inductive analysis and creative synthesis
10) holistic perspective
11) context sensitivity
12) voice, perspective, and reflexivity
Two strategies for reducing researcher bias are…
reflexivity (confronting and thinking about bias) and negative-case sampling (looking for case samples that do not fit your expectations).
True or False. Multiple investigators help to strengthen descriptive validity.
True.
two strategies to increase interpretive validity are…
participant feedback and low-inference descriptors (Phrasing it close to the way your participant does.)
Four strategies to increase theoretical validity are…
extended fieldwork, theory triangulation, pattern matching, and peer review.
idiographic causation is specific to a situation or small incident. What is it’s opposite, highly used in quantitative research?
nomological causation
Grounded theory Data analysis involves these three steps…
1) open coding (read data, record important concepts)
2) axial coding (decide which concepts are important)
3) selective coding (finishing touches on explanation)
when does theoretical saturation occur?
when no new information can be determined from data set.
What are the four major approaches to qualitative research?
phenomenological, ethology, grounded theory and case study research.