EIP Midterm USA Questions And Answers With Verified Solutions
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Course
EIP
Institution
EIP
Quantitative Research - research that assumes there is an objective truth. Uses numerical
measures
Qualitative Research - assumes the truth is subjective and relative to each individual
quasi-experimental design - lacks the random assignment or comparison groups or both
Single subject designs -...
EIP Midterm USA
Quantitative Research - research that assumes there is an objective truth. Uses numerical
measures
Qualitative Research - assumes the truth is subjective and relative to each individual
quasi-experimental design - lacks the random assignment or comparison groups or both
Single subject designs - single participant or subject establishes a cause and effect relationship
independent variable - predictor or "cause" variable
dependent variable - outcome, response, or effect variable
Validity - related to truthfulness or accuracy of a study's results
Types of validity - 1. internal
2. external
internal validity - relationsip between the independent and dependent variables is free from the
effects of extraneous factors
external validity - study can be generalized to persons or settings outside the experimental
situation
Threats to validity - 1. is there a relationship between the IV and DV?
2. is there evidence that one causes the other
3. can the results be generalized
, 7 single group threats to internal validity - 1. history
2. maturation
3. attrition
4. testing
5. instrumentation
6. statistical regression toward the mean
7. selection/assignment
History - (threat to internal validity) confounding event of specific events that occur during study
Maturation - (threat to internal validity) passage of time during a study
Attrition - (threat to internal validity) subjects that drop out of a study before completed
Testing - (threat to internal validity) potential effect of pretesting on the dependent variable.
Instrumentation - (threat to internal validity) reliability of measurement
Regression toward the mean - (threat to internal validity) When measures are not reliable,
tendency for extreme scores on the pretest to regress toward the mean on the posttest.
assignment - (threat to internal validity) occurs when the process of placing subjects in to group
results in differences in the baseline characteristics between groups
3 Social threats to validity - 1. Diffusion of treatment
2. compensatory rivalry
3. Resentful demoralizatoin
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