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Copy of Experiments in Psychology

IB 2 lecture #2
by

Sean Sonderman

on 24 September 2015

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Transcript of Copy of Experiments in Psychology

Confounding Variables
Results
Kinds of Research
Experiments in Psychology
Qualitative
Research
IExperimental Controls
(cc) photo by Metro Centric on Flickr
(cc) photo by Franco Folini on Flickr
(cc) photo by jimmyharris on Flickr
(cc) photo by Metro Centric on Flickr
social desirability bias
Hawthorne effect
lack of participant variability
artificiality
experimenter bias/
generalization
* single blind control
* double blind control
* random sampling
*
Experiments
Goal: to establish a cause-and effect relationship
Quantitative research- produces numerical data that can be tested for statistical significance
Key Components:
Independent variable
Dependent variable
Control
Operationalize
laboratory experiments
field experiments
Quantifiable surveys/
questionnairs
The type of research depends on the methods of the study.
The Hypothesis
expectancy effect
placebo effect
environmental effects
bidirectional abiguity
Non-
experimental
methods




i
Interviews
Observation
Case Studies
interview schedule
- structured
- unstructured
- semi-structured
- naturalistic ob
- covert ob (Rosenhan)
- participant ob
- non-participant ob
- individual or small group
-qualitative & quantitative
- detailed & often longitudinal
Quantitative (deductive)
- guided by hypothesis
- "If, then"
- based on empirical evidence
Qualitative- inductive
- guided by research topic/focu
- open-ended
- gather data first and then analyze meaning
* inter-observer reliability
- Predicts how the
IV affects the DV
- experimental hypothesis vs null hypothesis
- "If, then"
YAVIS bias
Sears effect
Mundane Realism
demand char.
EVAL
Points
Ethnocentrism
Full transcript