Flashcards
Stat Quiz Review
Cards in this deck (62)
- 1summarizes the collection of seemingly related observations and experiencesConception
- 2observations and experiences are ____; conceptions are ______real ; mental images
- 3Agreeing on what terms mean isConceptualization
- 4The result of conceptualizationConcept
- 5theoretical creations that are based on observations but cannot be observed directly or indirectlyConstructs
- 6TRUE OR FALSE: A concept is a construct – something we create and agree upon based on mental imagesTRUE
- 7the process of development and clarification of conceptsConceptualization
- 8clarifying one's concepts with words and examples and arriving at precise verbal definitionsConceptualization
- 9process through which we specify what we mean when we use particular terms in researchConceptualization
- 10We classify different meanings into different groups. Such groups are calledDimension
- 11TRUE OR FALSE: At a practical level, we are usually more interested in dimensions than in conceptsTRUE (because concepts are abstract/vague)
- 12When a dimension is not directly observable, we useIndicators
- 13a sign of the presence or absence of the concept we are studyingIndicators
- 14Difference between concept, dimension, and indicatorIn practice, the three terms are
often interchangeable but one difference is the level of abstraction - 15TRUE OR FALSE: One concept may have multiple dimensions; and one dimension may have multiple indicatorsTRUE
- 16a quantity that can take on different possible valuesVariable
- 17TRUE OR FALSE: Both dimension and indicator can be variablesTRUE
- 18In order to measure scientifically, remember that: You must have a ___ to study that is ___ and not ____thing ; real ; not imaginary
- 19TRUE OR FALSE: Constructs are based on mutually agreed mental conceptions of some object or behavior, the conceptions must be based on observables to be scientific.TRUE
- 20TRUE OR FALSE: Constructs do not have intrinsic meaningTRUE
- 21describes how a concept will be measuredOperationalization
- 22Operationalization ChoicesRange of Variation (Should be based
on distribution in the population you
are studying)
Precision of Variation - 23Can only be used to describe the group that is being studied. The results cannot be generalized to any larger groupDescriptive Statistics
- 24Examples of Descriptive StatisticsFrequency distributions
measures of central tendency (mean, median, and mode)
graphs
like pie charts and bar charts that describe the data - 25concerned with making predictions or inferences about a population from observations and analyses of a sampleInferential Statistics
- 26properties or characteristics of some event, object, or person that can take on different values or amountsVariables
- 27When a variable is manipulated by an experimenter, it is called anIndependent Variable
- 28In general, the independent variable is manipulated by the experimenter and its effects on the _____ variable are measured.Dependent
- 29are thought to influence changes in another variableIndependent Variable
- 30IV is sometimes calledexplanatory or predictor variable in nonexperimental research
- 31DV is sometimes calledoutcome or criterion variable in nonexperimental research
- 32changes in IV CAUSE changes in DVCausal Relationship
- 33variables are associated or occur together without the assumption of causationNoncausal Relationship
- 34is a designed research that provides information needed to solve a problemStatistical Inquiry
- 351. Identify the Problem 2. Plan the Study 3. Collect the data 4. Explore the data 5. Analyze the data and interpret the results 6. Present the resultsSteps of Statistical Inquiry
- 36“The goal is to transform data into information, and information into insight.”Carly Fiorina (Chairwoman of Hewlett-Packard Co. in 2000)
- 37Assigning a value or a number on a characteristic or attribute A step taken in finding out whether the subject of our study have the attribute we are examining, and to what extent they have itMeasurement
- 38Difference between conceptual and operational definitionsVariables are first defined by conceptual definitions. These are definitions that
explain the concept the variable is attempting to capture.
Second, variables are defined by operational definitions. These are definitions of how the variable will be measured in practice. - 39Qualities of Variables1. Exhaustive (include all possible responses)
2. Mutually Exclusive (no respondent should be able to have two attributes simultaneously) - 40The relationship of the values that are assigned to the attributes for a variableLevel of Measurement
- 41Why is Level of Measurement Important?1. Helps you decide what statistical analysis is appropriate on the values that were assigned
2. Helps you decide how to interpret the data from that variable - 42Data TypesQualitative
Quantitative - 43consist of values that can be separated into different categories that are distinguished by some nonnumeric characteristicQualitative
- 44a consist of values representing counts or measurementsQuantitative
- 45can take on any value in a given interval. Continuous data values result from some continuous scale that covers a range of values without gaps, interruptions, or jumps; can take any value within a rangeContinuous data
- 46can take on only particular distinct values and not other values in between. The values in discrete data is either a finite number or a countable number; jump from one category to anotherDiscrete Data
- 474 Levels of MeasurementNominal
Ordinal
Interval
Ratio - 48Qualitative Levels of MEasurementNominal
Ordinal - 49Quantitative Levels of MeasurementInterval
Ratio - 50are we studying what we think we are studying?Validity
- 51are the measures we are using consistent?Reliability
- 52refers to the degree to which a study accurately reflects or assesses the specific concept that the researcher is attempting to measure.Validity
- 53refers to the extent to which the results of a study are generalizable or transferableExternal Validity
- 54rigor in which the study as conducted and extend to which the designers of a study have taken into account alternative explanations for any causal relationships they exploreValidity
- 55concerned with how a measure or procedure appears (does not depend on established theories for support)Face Validity
- 56also referred to as instrumental validity, is used to demonstrate the accuracy of a measure or procedure by comparing it with another measure or procedure which has been demonstrated to be validCriterion Related Validity
- 57seeks agreement between a theoretical concept and a specific measuring device or procedureConstruct Validity
- 58based on the extent to which a measurement reflects the specific intended domain of contentContent Validity
- 59is the extent to which an experiment, test, or any measuring procedure yields the same result on repeated trials.Reliability
- 60Can a test be reliable without being valid?Yes, a test can be reliable without being valid.
- 61Can a test be valid without being reliable?No, a test cannot be valid but not reliable.
- 62TRUE OR FALSE: A test can be reliable and not valid; but if it is valid, it is by default reliableTRUE
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- Flashcards on Stat Quiz Review, created by Theana Ezen on 16/09/2024.
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- Theana Ezen
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