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AP Psychology Unit 2 Flashcards

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6693567904hindsight biasThe tendency to believe, after learning an outcome, that one would have foreseen it- "I knew it all along"0
6693567905critical thinkingIs rationally deciding what to believe or what to do. When one rationally decides something, he or she evaluates information to see if it makes sense, whether it's coherent, and whether the argument is well founded on evidence.1
6693567906validitythe extent to which a test or experiment measures or predicts what it is supposed to do2
6693567907theoryA hypothesis that has been tested with a significant amount of data3
6693567908hypothesisA testable prediction, often implied by a theory4
6693567909operational definitionA statement of the procedures used to define research variables5
6693567910replicationreplicate the original study6
6693567911case studyAn observation technique in which one person is studied in depth in the hope of revealing universal principles.7
6693567912surveyA study, generally in the form of an interview or questionnaire, that provides researchers with information about how people think and act.8
6693567913populationthe whole group that you want to study and describe9
6693567914random sampleA sample that fairly represents a population because each member has an equal chance of inclusion10
6693567915sampling biasflawed sampling process that produces an unrepresentative sample11
6693567916naturalistic observationObserving and recording behavior in naturally occurring situations without trying to manipulate and control the situation12
6693567917correlationA measure of the relationship between two variables13
6693567918correlation coefficientA statistical index of the relationship between two things (from -1 to +1)14
6693567919scatterplotA graphed cluster of dots, each of which represents the values of two variables.15
6693567920illusory correlationThe perception of a relationship where none exists16
6693567921experimentA research method in which an investigator manipulates one or more factors to observe the effect on some behavior or mental process17
6693567922random assignmentAssigning participants to experimental and control conditions by chance, thus minimizing preexisting differences between those assigned to the different groups18
6693567923double-blind studyAn experiment in which neither the participant nor the researcher knows whether the participant has received the treatment or the placebo19
6693567924placebo effectExperimental results caused by expectations alone; any effect on behavior caused by the administration of an inert substance or condition, which is assumed to be an active agent.20
6693567925experimental groupA subject or group of subjects in an experiment that is exposed to the factor or condition being tested.21
6693567926control groupIn an experiment, the group that is not exposed to the treatment; contrasts with the experimental group and serves as a comparison for evaluating the effect of the treatment.22
6693567927independent variable(statistics) a variable whose values are independent of changes in the values of other variables23
6693567928confounding variableA factor other than the independent variable that might produce an effect in an experiment.24
6693567929dependent varibalethe outcome factor the cariable that may change in response to manipulations of the independent variables --what you are measuring (ex. obesity rates)25
6693567930modeMeasure of central tendency that uses most frequently occurring score.26
6693567931meanAverage27
6693567932medianA measure of center in a set of numerical data. The median of a list of values is the value appearing at the center of a sorted version of the list - or the mean of the two central values if the list contains an even number of values.28
6693567933rangeDistance between highest and lowest scores in a set of data.29
6693567934standard deviationA computed measure of how much scores vary around the mean score.30
6693567935normal curvethe symmetrical bell-shaped curve that describes the distribution of many physical and psychological attributes. Most scores fall near the average, and fewer and fewer scores lie near the extremes.31
6693567936statistical significanceA statistical statement of how likely it is that an obtained result occurred by chance32
6693567937cultureBeliefs, customs, and traditions of a specific group of people.33
6693567938informed consentA written agreement to participate in a study made by an adult who has been informed of all the risks that participation may entail.34
6693567939debriefingA verbal description of the true nature and purpose of a study35
6693567940sampleA part of the population you are studying.36
6693567941how does overconfidence relate to everyday thinking?we tend to be more confident than correct and believe we know more than we actually do37
6693567942how do hindsight bias and overconfidence relate to intuition?leads us to overestimate our intuition38
66935679433 main components of scientific attitudecuriosity skepticism humility39
6693567944how do operational definitions keep biases in check?make sure that everyone is going by the same standards and is not changing how they see the data being studied40
6693567946a theory is useful if :- it effectively organizes a range of self-reports / observations and leads to a clear hypothesis that anyone can use to check a theory - it stimulates research to lead to a revised theory that better organizes and predicts what we know41
6693567947wording effect of a surveythe way a question or situation is presented affects how people feel about the matter (ex. better wording = more desired results)42
6693567948case studies, surveys, and naturalistic observations do not explain behavior, but rather ________ behaviordescribes43
6693567949positive correlationtwo variable rise and fall together, such as height and weight44
6693567950negative correlationvariables are related inversely, one goes up and the other goes down, such as inner speech and psychological distress45
66935679511 standard deviation68%46
66935679522 standard deviations95%47
66935679533 standard deviations99%48
6693567954z-score-3,-2,-1,1,2,3 standard deviaitons49
6693567957p-value0.0550
6693567958descriptive statisticsnumerical data used to measure and describe characteristics of groups, including measures of central tendency and variation51
6693567961measures of central tendencyrefers to how the data measures the center of a set of data52
6693567962skewed graphmode, median, and mean are different53
6693567963normal graphmode, median, and mean are same54
6693567964positive skewhigh outlier55
6693567965negative skewlow outlier56
6693567966measures of variabilitydepict diversity of the distribution (range, standard deviation)57
6693567967higher standard deviation =scores are less similar58
6693567968normal curve59
6693567969inferential statisticsnumerical data that allows one to generalize (T-tests, chi square, ANOVAS)60
6693567971descriptive stats vs. inferential statsd : allows us to summarize info about the sample studied i : determine whether or not findings can be applied to a larger population from which the sample was selected61
6693567972statistically significanthow likely it is that an obtained result occurred by chance (p-value) averages are reliable differences between averages is relatively large implies importance of results62
6693567973culture (behavior)enduring behaviors ideas, attitudes, and how people perceive different situations, such as body shape, early sex, etc.63
6693567974collectivist culturegroup goals64
6693567975individualist culturesindividual goals65
6693567976ethics in researchinformed consent protection from harm/discomfort maintain confidentiality debriefing66
6693567977IRB (Institutional Review Board)any academic research needs to be proposed to their IRB, review for ethical violations and/or procedural errors67

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