PSYC 304 FINAL EXAM QUESTIONS WUITH
CORRECT ANSWERS
4 scales of Measurement - CORRECT ANSWER✔✔-Nominal, Ordinal, Ratio,
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Interval
Nominal Scale - CORRECT ANSWER✔✔-Values are names or labels.
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Measurements label and categorize observations. Example: Gender, Baseball
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Jersey number|
Ordinal Scale - CORRECT ANSWER✔✔-consists of categories that are organized in
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an ordered sequence are ranked interns of seize or magnitude. Example- Rank in
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hotdog eating contest, order in which runners finish in marathon.
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Interval Scale - CORRECT ANSWER✔✔-most variables studied by psychologist are
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measured on interval scale. Properties- difference, difference magnitude, equal
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intervals. Example- temperature, time, length, scale rating.
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Ratio Scale - CORRECT ANSWER✔✔-difference, difference magnitude, equal
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intervals, true zero (0=nothing) enables ratio comparison.
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Example: physical measurement (distance, height)---> rating scale.
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Inferential Statistic - CORRECT ANSWER✔✔-making an inference about a
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population base on the observed sample. Takes into Account sampling error.
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, Descriptive Statistic - CORRECT ANSWER✔✔-used to organize and summarize
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data.
Population - CORRECT ANSWER✔✔-all individuals of interest in the study
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sample - CORRECT ANSWER✔✔-a set of individuals from the population, selected
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to represent the population
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Parameter - CORRECT ANSWER✔✔-numerical value that describes population
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Statistic - CORRECT ANSWER✔✔-a numerical value that describes a sample
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3 Ways to Describe Distribution - CORRECT ANSWER✔✔-Shape, Central Tendency,
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Variability
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Shape- Normal, Positive Skew, Negative Skew
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Central Tendency- mean, median, mode
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Variability- Range, Variance, Standard Deviation
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sampling error - CORRECT ANSWER✔✔-a natural discrepancy or error between a
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sample statistic and population parameter
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Central Tendency - CORRECT ANSWER✔✔-mean, median, mode
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Mean- Average of groups
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CORRECT ANSWERS
4 scales of Measurement - CORRECT ANSWER✔✔-Nominal, Ordinal, Ratio,
| | | | | | | | |
Interval
Nominal Scale - CORRECT ANSWER✔✔-Values are names or labels.
| | | | | | | | |
Measurements label and categorize observations. Example: Gender, Baseball
| | | | | | | |
Jersey number|
Ordinal Scale - CORRECT ANSWER✔✔-consists of categories that are organized in
| | | | | | | | | | |
an ordered sequence are ranked interns of seize or magnitude. Example- Rank in
| | | | | | | | | | | | |
hotdog eating contest, order in which runners finish in marathon.
| | | | | | | | |
Interval Scale - CORRECT ANSWER✔✔-most variables studied by psychologist are
| | | | | | | | | |
measured on interval scale. Properties- difference, difference magnitude, equal
| | | | | | | | |
intervals. Example- temperature, time, length, scale rating.
| | | | | |
Ratio Scale - CORRECT ANSWER✔✔-difference, difference magnitude, equal
| | | | | | | |
intervals, true zero (0=nothing) enables ratio comparison.
| | | | | |
Example: physical measurement (distance, height)---> rating scale.
| | | | | |
Inferential Statistic - CORRECT ANSWER✔✔-making an inference about a
| | | | | | | | |
population base on the observed sample. Takes into Account sampling error.
| | | | | | | | | |
, Descriptive Statistic - CORRECT ANSWER✔✔-used to organize and summarize
| | | | | | | | |
data.
Population - CORRECT ANSWER✔✔-all individuals of interest in the study
| | | | | | | | |
sample - CORRECT ANSWER✔✔-a set of individuals from the population, selected
| | | | | | | | | |
to represent the population
| | | |
Parameter - CORRECT ANSWER✔✔-numerical value that describes population
| | | | | | |
Statistic - CORRECT ANSWER✔✔-a numerical value that describes a sample
| | | | | | | | |
3 Ways to Describe Distribution - CORRECT ANSWER✔✔-Shape, Central Tendency,
| | | | | | | | |
Variability
| |
Shape- Normal, Positive Skew, Negative Skew
| | | | |
Central Tendency- mean, median, mode
| | | |
Variability- Range, Variance, Standard Deviation
| | | |
sampling error - CORRECT ANSWER✔✔-a natural discrepancy or error between a
| | | | | | | | | | |
sample statistic and population parameter
| | | |
Central Tendency - CORRECT ANSWER✔✔-mean, median, mode
| | | | | |
Mean- Average of groups
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