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2Research Methods

terms

QuestionAnswer
Scientific Method Initial observation or question, form a hypothesis, design the study, analyze the data and draw conclusions, report findings, consider open questions, act on open questions.
Observer Bias an error due to the personal motives and expectations of the viewer.
Standardization using uniform, consistent procedures
Operational Definition standardizes meaning within an experiment, by defining a concept in terms of specific operations
Variable any factor that varies in any amount
Independent Variable the factor that the researcher manipulates
Dependent Variable what the experiment measures
Placebo Effect when experimental participants change their behavior in the absence of any kind of experimental manipulation
Double-Blind Control both assistants and participants are unaware of who gets which treatment
Placebo Control when some of the patients are not administered the treatment
Control Procedures methods that attempt to hold constant all variables and conditions other than those related to the hypothesis being tested
Between-subject designs different groups of participants are randomly assigned, by chance procedures to an experimental condition, or to a control codition
Within-subjects Design uses each participant as his or her own control.
Correlational Methods used to determine to what extent two variables, traits, or attributes are related
Correlation Coefficient (r) This value can vary between +1.0 and -1.0 where +1.0 indicates a perfect positive correlation, -1.0 indicates a perfect negative correlation, and 0.0 indicates no correlation at all.
Reliability refrences to the consistency or dependability of behavioral data resulting from psychological testing or experimental research
Validity means that the information produced by research or testing accurately measures the psychological variable or quality it is intended to measure
Created by: lmnhodgins
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