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AP Psychology Unit 2 Flashcards

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7435662797hindsight biasThe tendency to believe, after learning an outcome, that one would have foreseen it- "I knew it all along"0
7435662798critical 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
7435662799validitythe extent to which a test or experiment measures or predicts what it is supposed to do2
7435662800theoryA hypothesis that has been tested with a significant amount of data3
7435662801hypothesisA testable prediction, often implied by a theory4
7435662802operational definitionA statement of the procedures used to define research variables5
7435662803replicationreplicate the original study6
7435662804case studyAn observation technique in which one person is studied in depth in the hope of revealing universal principles.7
7435662805surveyA study, generally in the form of an interview or questionnaire, that provides researchers with information about how people think and act.8
7435662806populationthe whole group that you want to study and describe9
7435662807random sampleA sample that fairly represents a population because each member has an equal chance of inclusion10
7435662808sampling biasflawed sampling process that produces an unrepresentative sample11
7435662809naturalistic observationObserving and recording behavior in naturally occurring situations without trying to manipulate and control the situation12
7435662810correlationA measure of the relationship between two variables13
7435662811correlation coefficientA statistical index of the relationship between two things (from -1 to +1)14
7435662812scatterplotA graphed cluster of dots, each of which represents the values of two variables.15
7435662813illusory correlationThe perception of a relationship where none exists16
7435662814experimentA research method in which an investigator manipulates one or more factors to observe the effect on some behavior or mental process17
7435662815random assignmentAssigning participants to experimental and control conditions by chance, thus minimizing preexisting differences between those assigned to the different groups18
7435662816double-blind studyAn experiment in which neither the participant nor the researcher knows whether the participant has received the treatment or the placebo19
7435662817placebo 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
7435662818experimental groupA subject or group of subjects in an experiment that is exposed to the factor or condition being tested.21
7435662819control 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
7435662820independent variable(statistics) a variable whose values are independent of changes in the values of other variables23
7435662821confounding variableA factor other than the independent variable that might produce an effect in an experiment.24
7435662822dependent varibalethe outcome factor the cariable that may change in response to manipulations of the independent variables --what you are measuring (ex. obesity rates)25
7435662823modeMeasure of central tendency that uses most frequently occurring score.26
7435662824meanAverage27
7435662825medianA 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
7435662826rangeDistance between highest and lowest scores in a set of data.29
7435662827standard deviationA computed measure of how much scores vary around the mean score.30
7435662828normal 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
7435662829statistical significanceA statistical statement of how likely it is that an obtained result occurred by chance32
7435662830cultureBeliefs, customs, and traditions of a specific group of people.33
7435662831informed 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
7435662832debriefingA verbal description of the true nature and purpose of a study35
7435662833sampleA part of the population you are studying.36
7435662834how does overconfidence relate to everyday thinking?we tend to be more confident than correct and believe we know more than we actually do37
7435662835how do hindsight bias and overconfidence relate to intuition?leads us to overestimate our intuition38
74356628363 main components of scientific attitudecuriosity skepticism humility39
7435662837how 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
7435662838a 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
7435662839wording 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
7435662840case studies, surveys, and naturalistic observations do not explain behavior, but rather ________ behaviordescribes43
7435662841positive correlationtwo variable rise and fall together, such as height and weight44
7435662842negative correlationvariables are related inversely, one goes up and the other goes down, such as inner speech and psychological distress45
74356628431 standard deviation68%46
74356628442 standard deviations95%47
74356628453 standard deviations99%48
7435662846z-score-3,-2,-1,1,2,3 standard deviaitons49
7435662847p-value0.0550
7435662848descriptive statisticsnumerical data used to measure and describe characteristics of groups, including measures of central tendency and variation51
7435662849measures of central tendencyrefers to how the data measures the center of a set of data52
7435662850skewed graphmode, median, and mean are different53
7435662851normal graphmode, median, and mean are same54
7435662852positive skewhigh outlier55
7435662853negative skewlow outlier56
7435662854measures of variabilitydepict diversity of the distribution (range, standard deviation)57
7435662855higher standard deviation =scores are less similar58
7435662856normal curve59
7435662857inferential statisticsnumerical data that allows one to generalize (T-tests, chi square, ANOVAS)60
7435662858descriptive 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
7435662859statistically 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
7435662860culture (behavior)enduring behaviors ideas, attitudes, and how people perceive different situations, such as body shape, early sex, etc.63
7435662861collectivist culturegroup goals64
7435662862individualist culturesindividual goals65
7435662863ethics in researchinformed consent protection from harm/discomfort maintain confidentiality debriefing66
7435662864IRB (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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