PSY100H1 Chapter 2: Chapter 2 Psychological Science Review Notes

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9 Oct 2010

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Replication: repetition of an experiment to confirm the results. Theory: a model of interconnected ideas and concepts that explains what is observed and makes predictions about future events. Hypothesis: a specific prediction of what should be observed in the world if a theory is correct. Research: scientific process that involves the systematic and careful collection of data. Variable: something in the world that can be measured and that can vary. Operational definition: the quantification of a variable that allows it to be measured. Experiment: a study that tests casual hypotheses by measuring and manipulating variables. Independent variable: in an experiment, the condition that is manipulated by the experimenter to examine its impact on the dependent variable. Dependent variable: in an experiment, the measure that is affected by manipulation of the independent variable. Confound: anything that affects a dependent variable that may unintentionally vary between the different experimental conditions of a study.

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16. A hypothesis is an) a unprovable assumption about the unobservable processes that underlie psychological functioning. b. set of principles that organizes observations and explains newly discovered facts, c. testable prediction that gives direction to research. d. observable relationship between specific independent and dependent variables.

1) A doctor and his assistant are studying patients with visuospatial neglect. They 36 patients who just had strokes that damaged their right hemispheres. 16 of these patients have been diagnosed with visuospatial neglect based on their attention test score of 53 or less (normal test score is <236 ). These visuospatial neglect patients recovery is then tracked over a period of 2 weeks, that is their attention test score are observed after varying periods of time. All the patients recover expect 6 who seem to have made no recovery. a) What is a plausible hypothesis for this study? b) What is the independent variable? c) What is the dependent variable? d) Is this study an experiment? Explain e) What can u infer about the recovery from visuospatial neglect

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PSY100H1 Chapter 2: Chapter 2 Psychological Science Review Notes

PSY100H1 Full Course Notes

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