EXSC520 Week 3 Quiz Fundamental Vocabulary

Question 1What is measuring “what it’s supposed to be measuring” called?

Objectivity

 Validity

 Reliability

Question 2What classification of data groups subjects into mutually exclusive categories with quantifiable differentiation?

Percentage

 Nominal

 Percentile

Question 3What measures an experiment’s ability for its results to be due to the treatment that was applied?

Intervening validity

 Central limiting theorem

 Internal validity

Question 4What is determining the worth of data?

Evaluation

 Results

 Validity

Question 5A curve that has a wide range of scores with low frequencies is called what?

Floor effect

 Platykurtic

 Skewed

Question 6Placing the full 5% of the alpha area representing error at either end of the curve making it more likely to find significant differences is known as what?

Skewed

 One-tailed test

 Percentage of error rate

Question 7What percent of the scores lies between the mean and +/-1 Z score?

34.13

 68.26

 1 standard deviation

 

Question 8Variables that are manipulated or controlled by the researcher are known as__________.

Intervening variables

 Independent variables

 Measurements

Question 9What is the level of chance occurrence (error factor)?

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Question 10What classification of data has equal units that are the same distance between each dimension of the scale; with no absolute zero?

Parametric

 Ratio

 Interval

Question 11What classification of data is based on order with zero as the absence of a value?

Nonparametric

 Interval

 Ratio

Question 12Can a test be reliable without being valid?

False

 True

 Depends

Question 13What is comparing a value to a standard known as?

Standard scoring

 Measurement

 Evaluation

Question 14What is determined by the test-retest method?

 

 Objectivity

 Reliability

 Evaluation

Question 15If there is a 36% chance of being incorrect, what is that known as?

Effect or error rate

 Probability of error

 Beta

Question 16What is the name of the point when a center fraction of the population of raw scores lies at or below that point?

Percentage

 Percentile

 Flooring effect

Question 17__________ is a raw score expressed in standard deviation units.

Variance

 Standard error of measurement

 Z-score

Question 18_____ is derived from raw data and has a known basis for comparison.

A percentile

A standard score

A standard deviation

Question 19What is it called when scores are limited on how high they can go and yet they ‘bunch’ up around that limit?

Skewed

Ceiling effect

 Mesokurtic

Question 20What is known as collecting data without bias?

Honesty

 Objectivity

 Validity

Question 21What is the study’s generalizability from a sample to a population?

 

 Centralizing theorem

 Internal validity

 External validity

Question 22What is the shape of the curve that has most scores in the midrange and a tapering frequency toward the tails?

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Question 23What is one way to directly compare two or more sets of data?

Percentiles

Ratios

Z-scores

Question 24What is known by adding random numbers together causing a normal distribution?

Gaussian variable factor

Internal reliability

Central limit theorem

Question 25A confidence interval of 68% is _________than the 95% confidence interval.

More skewed

Wider

Narrower

Question 26What is affected by one or more other variables?

Dependent variable

Measurements

Data

Question 27What is a name for the curve that has the mean, median and mode at the center?

 Mesokurtic

 Platykurtic

 Gaussian

Question 28A classification of data that doesn’t meet the assumption of normality is __________.

Nonparametric

 Parametric

 Nonparenthetic

Question 29What results from a measurement?

Results

 Evaluation

 Data

Question 30What is it called when a distribution is disproportionately distributed toward one end of the scale?

Skewed

Ceiling effect

Percentile ranking

Question 31_________ is the average of the squared deviations from the mean.

Variance

Median

Standard deviation

Question 32What is the value called that is the square root of the variance?

Standard deviation

 Standard error of the mean

 Beta

Question 33Scales that do meet the assumption of normality are classified as_________.

Well-dispersed

 Paramedic

 Parametric

Question 34What classification of data is a ranked order scale?

Ordinal

Interval

Nominal