Quiz
Chapter 7 - RDA1 definitions
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Perguntas do quiz (33)
1The difference between the observations in a population and in the sample that represents that population in a study
- ASampling error
- BCritical region
- CConfidence interval
- DType I error
2Measures that help us summarise data sets
- ADescriptive
- BInferential
- CCentral tendency
- DVariability
3A set of statistical procedures used by researchers to test hypotheses about populations
- AInferential stats
- BDescriptive stats
- CCentral tendency
- DDistribution
4A set of scores
- ADistribution
- BCentral tendency
- CVariability
- DDescriptive stats
5Representation of a typical score in a distribution
- ACentral tendency
- BVariability
- CDistribution
- DRange
6The spread of scores in a distribution
- AVariability
- BCentral tendency
- COutliers
- DMode
7The calculated average of the scores in a distribution
- AMean
- BMedian
- CMode
- DRange
8The middle score in a distribution, such that half the scores are above and half are below that value
- AMedian
- BMode
- CMean
- DInterquartile range
9The most common score in a distribution
- AMode
- BPercentile
- CMedian
- DInterquartile range
10Extreme high or low scores in a distribution
- AOutliers
- BSampling error
- CConfidence interval
- DDegrees of freedom
11Measurement of the length of time to complete a task
- AReaction time
- BResponse rate
- CStandard deviation
- DVariance
12Difference between the highest and lowest scores in a distribution
- ARange
- BInterquartile range
- CPercentile
- DStandard deviation
13A measure representing the average difference between the scores and the mean of a distribution
- AStandard deviation
- BVariance
- CRange
- DMode
14The standard deviation of distribution squared
- AVariance
- BSampling error
- CInterquartile range
- DDegrees of freedom
15Number of scores that can vary in the calculation of a statistic
- ADegrees of freedom
- BFrequency distribution
- CVariance
- DPredictor variable
16A graph of a distribution showing the frequency of each response in the distribution
- AFrequency distribution
- BBar graph
- CLine graph
- DScatterplot
17A graph of the means for different conditions in a study where each mean is graphed as a point and the points are connected in a line to show differences between mean scores
- ALine graph
- BBar graph
- CScatterplot
- DBoxplot
18A graph showing the relationship between two dependent variables for a group of individuals
- AScatterplot
- BLine graph
- CFrequency distribution
- DHistogram
19The dependent variable in a correlational study that is used to predict the score on another variable
- APredictor variable
- BOutcome variable
- CIndependent variable
- DDependent variable
20The dependent variable in a correlational study that is being predicted by the predictor variable
- AOutcome variable
- BDependent variable
- CIndependent variable
- DPredictor variable
21The hypothesis that an effect or relationship exists in the population
- AScientific/alternative hypothesis
- BNull hypothesis
- CTwo-tailed hypothesis
- DOne-tailed hypothesis
22The hypothesis that an effect or relationship does not exist in the population
- ANull hypothesis
- BScientific/alternative hypothesis
- CTwo-tailed hypothesis
- DOne-tailed hypothesis
23Both directions of an effect or relationship are considered in the alternative hypothesis
- ATwo-tailed hypothesis
- BOne-tailed hypothesis
- CCasual hypothesis
- DDescriptive hypothesis
24Only one direction of an effect or relationship is predicted in the alternative hypothesis
- AOne-tailed hypothesis
- BTwo-tailed hypothesis
- CNull hypothesis
- DDescriptive hypothesis
25The distribution of all possible sample means for all possible samples from a population
- ADistribution of sample means
- BConfidence interval
- CAlpha level
- DCritical region
26A range of values that the population mean likely falls into with a specific level of certainty
- AConfidence interval
- BDistribution of sample means
- CSignificant test
- DP value
27The probability level used by researchers to indicate the cutoff probability level that allows them to reject the null hypothesis
- AAlpha value
- BP value
- CSignificant test
- DCritical region
28Probability value associated with an inferential test that indicates the likelihood of obtaining the data in a study when the null hypothesis is true
- AP value
- BAlpha level
- CSignificant test
- DCritical region
29The p value is less than or equal to alpha in an inferential test, and the null hypothesis can be rejected
- ASignificant test
- BCritical region
- CP value
- DAlpha value
30The most extreme portion of a distribution of statistical values for the null hypothesis determined by the alpha level (typically 5%)
- ACritical region
- BSignificant test
- CP value
- DAlpha level
31The researcher rejects the null hypothesis when it is true
- AType I error
- BType II error
- CSampling error
- DPower
32The researcher fails to reject the null hypothesis when it is false
- AType II error
- BType I error
- CSampling error
- DConfidence interval
33Ability of a significance test to detect an effect or relationship when one exists
- APower
- BType I error
- CType II error
- DAlpha level
Informações
- Descrição
- Degree Psychology Year 1 - Semester 2 (RDA1) Quiz sobre Chapter 7 - RDA1 definitions, criado por Róisín Farmer em 03-05-2016.
- Autor
- Róisín Farmer
- Idioma
- English
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