A practical guide to the system usability scale: background, benchmarks & best practices
Saved in:
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Denver, Col.
Measuring Usability LLC
2011
|
| Subjects: | |
| Online Access: | Inhaltsverzeichnis |
| Item Description: | Literaturverz. S. 156 - 158 |
| Physical Description: | 162 S. graph. Darst. |
| ISBN: | 9781461062707 |
Staff View
MARC
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Record in the Search Index
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|---|---|
| adam_text | Contents
Contents
Acknowledgements...............................................................................................
8
Highlights.............................................................................................................10
The System
Usability Scale...................................................................................
11
Background
..........................................................................................................12
SUS
History
&
Development
................................................................................ 14
Where did
SUS
come from?
..............................................................................15
How was
SUS
developed?
.................................................................................16
Scoring
&
Reporting
SUS
Scores
...........................................................................18
Scoring the
SUS
................................................................................................. 19
Error Checks in the
SUS
Calculator
.................................................................21
An Example Scored
SUS
Questionnaire
.............................................................22
Should you report the mean or the median
SUS
Score?
...................................22
What are possible
SUS
scores?
.........................................................................25
Handling missing values
....................................................................................26
Interpreting
SUS
Scores
.......................................................................................30
Interpreting
a SUS
Score
...................................................................................31
SUS
Grading on a Curve
.................................................................................33
Is
a SUS
score a percentage?
.............................................................................36
What is a good
SUS
score?
......................................................................■.........36
Can you report statistics on the individual items in the
SUS?
...........................37
Measuring changes in
SUS
overtime
................................................................39
Properties and
SUS
Characteristics
......................................................................41
Why are the items alternating between positive and negative wording?
.........42
Problems caused by alternating
SUS
items from positive to negative
...............43
Can
SUS
be used on websites?
..........................................................................45
Does
SUS
need to be administered during a usability test?
...............................48
Does
SUS
provide an absolute measure of usability?
........................................49
SUS
Benchmark Data
...........................................................................................52
SUS
benchmarks by interface type
....................................................................53
Summary Table of
SUS
Scores by Type of Interface
.......................................54
Definitions of benchmark sources
..................................................................54
Source
ТаЫе
..................................................................................................55
iauro
Contents
Converting raw
SUS
score to percentile ranks
..................................................56
Modifying the
SUS
................................................................................................60
Changing the wording of
SUS
items
..................................................................61
Using an ail-positively worded version of
SUS
....................................................62
Adding items to
SUS
..........................................................................................63
Removing items from
SUS
.................................................................................63
Changing the order of
SUS
Items
......................................................................64
Changing the number of response options
.......................................................64
Can I remove the neutral response?
.................................................................67
SUS
Reliability, Validity
&
Effectiveness
...............................................................68
Does
SUS
have enough points of discrimination?
.............................................69
Are
10
items enough to measure usability?
......................................................70
How reliable is
SUS?
.........................................................................................71
How valid is
SUS?
..............................................................................................72
What other questionnaires are like
SUS?
..........................................................72
How
SUS
compares to other questionnaires
.....................................................75
SUS
&
SUMI...................................................................................................
75
SUS
and
WAMMI...........................................................................................78
Do
SUS
scores correlate with other usability metrics?
......................................79
SUS
and customer loyalty
.................................................................................81
Is
SUS
data normally distributed?
....................,...........,....................................83
Detecting non-normality
................................................................................84
The central limit theorem
.....................................___,,...................................87
Robustness
....................................................................................................89
Statements about the population,
......................................................................89
Normality summary
.........................................................................................90
SUS
is free: Do you get what you pay for?
..................,......................................90
Does
SUS
measure usability?
............................................................................92
What else does
SUS
measure?
..........................................................................92
Is
SUS
reliable in different languages?
..............................................................94
What factors affect the
SUS
scores?
.................................................................95
Experience
.....................................................................................................95
Age
................................................................................................................98
Gender
...........................................................................................................99
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Contents
Education
.......................................................................................................99
Accounting for levels of experience when comparing products with
SUS
.........99
Is
SUS
the best questionnaire to measure usability?
.......................................101
Common mistakes when using the
SUS
..........................................................102
Statistical Comparisons of
SUS
Scores
................................................................104
Confidence intervals around
a SUS
score
........................................................ 105
Comparing
a SUS
score to a benchmark
.........................................................107
Assumptions
................................................................................................ 110
How do I generate a percentile score relative to a benchmark?
.....................
Ill
Determining whether
SUS
scores are significantly different
...........................115
Within-subjects comparison (paired t-test)
.................................................115
Confidence interval around the difference
..................................................118
Between-subjects comparison (2-sample West)
.......................................... 122
Why you don t need to worry (too much) about violating assumptions
......128
Sample Size
........................................................................................................130
What is the minimum sample size needed?
....................................................131
Is
a SUS
score from a Small Sample Size Useless?
...........................................134
Standard deviation of the
SUS
........................................................................137
Calculating sample sizes for single
SUS
tests
...................................................138
Calculating sample sizes for comparing
SUS
scores
.........................................142
Between-subjects
........................................................................................143
Within-subjects
............................,........................,...........,.....,.,.,................147
Calculating sample sizes for comparing
a SUS
score to a benchmark
..............151
One-sided confidence levels
..........................................................................153
Description of Data Sources
................................................................................155
References
...........................................................................................................156
The System Usability Scale
.................................................................................159
All Positive Version of the System Usability Scale
.............................................. 160
About the Author
...............................................................................................161
Jeff
Sauro
|
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| isbn | 9781461062707 |
| language | English |
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| physical | 162 S. graph. Darst. |
| publishDate | 2011 |
| publishDateSearch | 2011 |
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| publisher | Measuring Usability LLC |
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| spelling | Sauro, Jeff Verfasser (DE-588)1022650173 aut A practical guide to the system usability scale background, benchmarks & best practices Jeff Sauro Denver, Col. Measuring Usability LLC 2011 162 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Literaturverz. S. 156 - 158 Benutzerfreundlichkeit (DE-588)4005541-3 gnd rswk-swf Datenanalyse (DE-588)4123037-1 gnd rswk-swf Benutzerfreundlichkeit (DE-588)4005541-3 s Datenanalyse (DE-588)4123037-1 s DE-604 Digitalisierung UB Regensburg - ADAM Catalogue Enrichment application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027013425&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Sauro, Jeff A practical guide to the system usability scale background, benchmarks & best practices Benutzerfreundlichkeit (DE-588)4005541-3 gnd Datenanalyse (DE-588)4123037-1 gnd |
| subject_GND | (DE-588)4005541-3 (DE-588)4123037-1 |
| title | A practical guide to the system usability scale background, benchmarks & best practices |
| title_auth | A practical guide to the system usability scale background, benchmarks & best practices |
| title_exact_search | A practical guide to the system usability scale background, benchmarks & best practices |
| title_full | A practical guide to the system usability scale background, benchmarks & best practices Jeff Sauro |
| title_fullStr | A practical guide to the system usability scale background, benchmarks & best practices Jeff Sauro |
| title_full_unstemmed | A practical guide to the system usability scale background, benchmarks & best practices Jeff Sauro |
| title_short | A practical guide to the system usability scale |
| title_sort | a practical guide to the system usability scale background benchmarks best practices |
| title_sub | background, benchmarks & best practices |
| topic | Benutzerfreundlichkeit (DE-588)4005541-3 gnd Datenanalyse (DE-588)4123037-1 gnd |
| topic_facet | Benutzerfreundlichkeit Datenanalyse |
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