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

by OC510850

School

Simon Fraser UniversityDepartment

PsychologyCourse Code

PSYC 210Professor

Snjezana HuertaStudy Guide

FinalThis

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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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