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Lecture 2

PSYC 1200 Lecture 2: psych 2: principles of scientific research

by OneClass2516459 , Fall 2017
3 Pages
46 Views
Fall 2017

Department
Psychology
Course Code
PSYC 1200
Professor
Launa C.Leboe- Mcgowan
Lecture
2

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Chapter 2: Principles of Scientific Research
Objectives:
Understand the key characteristics of scientific research
Know the different types of research designs
Learn importance of ethics in research
Become familiar with ways of analyzing research data
Characteristics of Scientific research
Objective, valid, reliable measurements
Objective: measurement of the variable is standardized (consistent)
Validity: measured what it is intended to measure. Ex. Ecological
validity
Reliability: same results (consistent results)
Test-retest reliability
Alternate-forms reliability
Inter=rater reliability
Generalizable
The results of a research study are meaningful:
In other situations
For other individuals
Ideally results apply to the entire population or group that the researcher is
studying
Realistically, results are applied to sample population
Controlled for bias
Research studies should minimize bias from both the researchers and
subjects/ participants
Bias can stem from:
Demand characteristics
Placebo effect
Social desirability
Expectancy effect
Hawthorne effect= changing your behaviour when you know
someone is watching
Ways to minimize bias
Anonymity: no personal identifiers of the participant/ subject
Confidentiality: limited individuals have access to participant/ subject
responses
Blind procedures: single-blind study (participant doesn’t know but study
knows), double- blind study (participant and study doesn’t know)
Findings are shared:
Publication in peer-reviewed journals
Presentation at conferences
Sharing is important because:
Knowledge is enhanced, study can be used for further studies, study
can be replicated
Results can be replicated

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Description
Chapter 2: Principles of Scientific Research Objectives: Understand the key characteristics of scientific research Know the different types of research designs Learn importance of ethics in research Become familiar with ways of analyzing research data Characteristics of Scientific research Objective, valid, reliable measurements Objective: measurement of the variable is standardized (consistent) Validity: measured what it is intended to measure. Ex. Ecological validity Reliability: same results (consistent results) Testretest reliability Alternateforms reliability Inter=rater reliability Generalizable The results of a research study are meaningful: In other situations For other individuals Ideally results apply to the entire population or group that the researcher is studying Realistically, results are applied to sample population Controlled for bias Research studies should minimize bias from both the researchers and subjects participants Bias can stem from: Demand characteristics Placebo effect Social desirability Expectancy effect Hawthorne effect= changing your behaviour when you know someone is watching Ways to minimize bias Anonymity: no personal identifiers of the participant subject Confidentiality: limited individuals have access to participant subject responses Blind procedures: singleblind study (participant doesnt know but study knows), double blind study (participant and study doesnt know) Findings are shared: Publication in peerreviewed journals Presentation at conferences Sharing is important because: Knowledge is enhanced, study can be used for further studies, study can be replicated Results can be replicated
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