CH1: part 2 Flashcards
(21 cards)
Research goals
-determine reliable pattersn
-determine causal influences
-predict behavior
-implement interventions
Systematic observation types
-naturalistic observations (qualitative)
-structured observations (quantitative)
Self reports types
-interviews, questionnaries
Methods of gathering info
systematic observation, self-reports, etc.
What is reliability
It measures consistently over time
Test retest reliabilty
same response over time
Interrater reliabilty
Clear and universal definitions of rating behavior
Ex: what a 2 on a 10 scale looks like
Validity
measures what was intended
ecological validity
accurate representation of what goes on in the world
measures intent
-you can increase it by doing field experiments
internal validity
-the likelihood of causal relationship (only IV affects DV)
General reseach design types
correlational, experimental, modified experimental designs
Correlational
-magnitude: beween 0 to 1, closer to 1 is stronger relationship
Direction: + or -,
-positive=diret correlation, negative= inverse corelation
Expermiental design types and differences
Independent:
-experimenter changes or manipulates
-expected to cause change in another variable
Dependent:
-experimenter measures but does NOT manipulate
-expected to be influenced by the independent variable
Modified Experimental Designs types and descriptions
Field experiments
-use rare opportunities for natural assignments in natural settings
-deliberately introduce change into a person’s natural enviornment
-observe, adjust, observe
-increase ecological validity
Natural experiment
-compare differences in treatment that already exist
-groups chosen to match characteristics as much as possible
-no intervention, quasi experiment
Designs for studying development
longitudinal, cross sectional, sequential, microgenetic
Longitudinal reserach
same participants studied repeatedly at differnt ages
Cross sectional
people of differing ages all studied at the same time
Sequential
groups of different aged people studied repeatedly as they age
Microgenetic
same participant studied repeatedly over a short period as they master a task
Children’s research rights
protection from harm, informed consent, privacy, knowledge of results, beneficial treatments
Why do we need statistics?
To determine reliable differences among groups
-measures of central tendency and variability
-generalization and predictability
-predicting for groups vs individuals