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Chapter 2 - Flashcards

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Class:PSY 220 - Child Psychology
Subject:Psychology
University:University of North Carolina-Wilmington
Term:Spring 2012
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Adolescence Family Interactions Method: 220 middle and working class youth in a longitudinal study
5th-12th grade
Results: age changes in the amount of time, context, and content of family interactions 
Experimental Design Cause and Effect

Independent variable, dependent variable

Researcher directly controls or manipulates change
Must take precautions to control for participants' characteristics that could reduce the validity of their findings.
Independent Variable Manipulated by experimenter (ex. Baby einstein music) 


Dependent Variable Influenced by independent variable 
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Control Group Not receiving exposure 
Experimental Group Receiving exposure 
Correlational Study Relationship between two variables that are already occurring in the world.  
Example: Classical music and IQ scores




*want to be able to research, but naturally. 
Positive Correlation as one variable increases, the other increases 

Example: The more classical music children listen to, the higher the IQ scores. 
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Negative Correlation As one variable increases, the other decreases 

Example: The more classical music children listen to, the lower the IQ scores. 
Developmental Design Age comparisons 
Longitudinal Study A longitudinal involves repeated observations of the same variables over long periods of time.

Advantages: Researchers can identify common patterns as well as individual differences in development. Permit investigation to examine relationships between early and later events and behaviors. 
Disadvantages: failure to enlist participants to represent the population. Selective attrition: Participants may more away or drop out of study. 

Selective Attrition When participants move or drop out of a study 
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Practice effects Practices may become "test wise" . Participants know they are being tested. Not because of factors commonly associated with development 
Cohort Effects Widely discussed threat to Longitudinal findings.  Children developing in the same time period who are influenced by particular cultural and historical conditions. Results based on one ____ may not apply to children developing at other times. 
Cross- Sequential Groups of people differing in age are studied at the same point in time . Immediately 

Disadvantage: we cannot tell if important individual differences exist 
Sequential Conducting several similar cross-sequential or longitudinal studies at varying times. 

Try to overcome the limitations of traditional developmental designs 
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Microgenetic Design adaption of the longitudinal approach, presents children with a novel task and follows their mastery over a series of closely spaced sessions. Researchers observe how change occurs. 
1: Protection from harm Children have the right to be protected from physical or psychological harm in research. 
Informed Consent Have the right to have research explained to them. . Have the rights to discontinue research at any time,
Privacy Right to conceal their identity 
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Knowledge of Results Informed of the results of research in language that is appropriate for them 
Beneficial Treatments Children have the right to alternative beneficial treatments if they are available 
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 Adolescence Family InteractionsMethod: 220 middle and working class youth in a longitudinal study
5th-12th grade
Results: age changes in the amount of time, context, and content of family interactions 
 Experimental DesignCause and Effect

Independent variable, dependent variable

Researcher directly controls or manipulates change
Must take precautions to control for participants' characteristics that could reduce the validity of their findings.
 Independent VariableManipulated by experimenter (ex. Baby einstein music) 


 Dependent VariableInfluenced by independent variable 
 Control GroupNot receiving exposure 
 Experimental GroupReceiving exposure 
 Correlational StudyRelationship between two variables that are already occurring in the world.  
Example: Classical music and IQ scores




*want to be able to research, but naturally. 
 Positive Correlationas one variable increases, the other increases 

Example: The more classical music children listen to, the higher the IQ scores. 
 Negative CorrelationAs one variable increases, the other decreases 

Example: The more classical music children listen to, the lower the IQ scores. 
 Developmental DesignAge comparisons 
 Longitudinal StudyA longitudinal involves repeated observations of the same variables over long periods of time.

Advantages: Researchers can identify common patterns as well as individual differences in development. Permit investigation to examine relationships between early and later events and behaviors. 
Disadvantages: failure to enlist participants to represent the population. Selective attrition: Participants may more away or drop out of study. 

 Selective AttritionWhen participants move or drop out of a study 
 Practice effectsPractices may become "test wise" . Participants know they are being tested. Not because of factors commonly associated with development 
 Cohort EffectsWidely discussed threat to Longitudinal findings.  Children developing in the same time period who are influenced by particular cultural and historical conditions. Results based on one ____ may not apply to children developing at other times. 
 Cross- SequentialGroups of people differing in age are studied at the same point in time . Immediately 

Disadvantage: we cannot tell if important individual differences exist 
 SequentialConducting several similar cross-sequential or longitudinal studies at varying times. 

Try to overcome the limitations of traditional developmental designs 
 Microgenetic Designadaption of the longitudinal approach, presents children with a novel task and follows their mastery over a series of closely spaced sessions. Researchers observe how change occurs. 
 1: Protection from harmChildren have the right to be protected from physical or psychological harm in research. 
 Informed ConsentHave the right to have research explained to them. . Have the rights to discontinue research at any time,
 PrivacyRight to conceal their identity 
 Knowledge of ResultsInformed of the results of research in language that is appropriate for them 
 Beneficial TreatmentsChildren have the right to alternative beneficial treatments if they are available