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Final

PSYC 210 Study Guide - Final Guide: Statistical Hypothesis Testing, Central Tendency, Standard Deviation

Department
Psychology
Course Code
PSYC 210
Professor
Snjezana Huerta
Study Guide
Final

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Provided blank by instructor, fill out yourself as practice, tweaked by my preferences)
Stevens’ (1946) Four Scales of Measurement
Nominal Ordinal Interval Ratio
Distinguishing
characteristics /
properties of the
scale of
measurement
Categories/labels of
data (if numbers are
used to represent
variables, numbers do
not have any numerical
value)
Rank order (1st, 2nd,
3rd) (still no degree of
difference between
variables) [1 and 2 DO
NOT have 1 unit a part from
each other, order 1,2,3 is
arbitrary]
Equal units (there is a
degree of difference
between items, but no
ratio cuz there is no
true 0, 40°C is not twice as
hot as 20°C)
True 0
Example?
Hair colour Hair length (short, med,
long)
Temperature (0°C, 20°C,
40°C)
Oranges (0,4,7,3)
Weight, duration,
(amounts)
Which measures of
location might be
appropriate?
Mode, frequency Median, mode Mean, mode, median Mean, mode, median,
Which measures of
dispersion might be
appropriate?
Uhh no Percentile Range, standard
deviation, IQR,
min/max
Range, SD etc,
coefficient of variation
Are frequencies and/or
cumulative frequencies
appropriate?
yes mhm yis si señor
Extra info
Central tendency Central tendency Central Tendency
Statistical Dispersion
Central Tendency
Statistical Dispersion
(use all mathematical
operations)
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