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8h
comment How long does it take a user to find and click an object in a list?
You can simulate the actions and get time estimates using CogTool. It is based on ACT-R and some form of GOMS.
Oct
18
comment How do users react to a browser request for geolocation?
@EvilClosetMonkey Understood...and the ubiquity of web site's detecting a desktop browser location without asking permission was the source of my question. When would asking permission to do something most sites do already be necessary? I do not understand the context in which this question would be asked.
Oct
17
comment Graph number alignment
The numeric vertical axis labels should be right-aligned.
Oct
17
comment Security questions vs secret password/passcode when logging in or retrieving login details?
Advice from Citrix on the trade-off between security and usability. Research on people's ability to pick high entropy questions - as suggested by Citrix.
Oct
17
comment Security questions vs secret password/passcode when logging in or retrieving login details?
Related question from 2010
Oct
17
comment How do users react to a browser request for geolocation?
What does 'request of geolocation' mean? On the desktop, the client location can be determined by the IP address in the request header. In a mobile app, the location can be determined in several ways.
Oct
16
comment What a user friendly indoor navigation map should look like on mobile devices?
This is an active research topic. Examples include research on preferences, influence of spatial cognition and this one too, and tests of prototypes.
Oct
16
comment Optimal duration for animating transitions
Optimal duration depends on the purpose of the animation. See the Animated Transitions section of this paper. This research shows the optimal duration depends on the type of animation.
Oct
16
comment How many users should be tested with
Discussions about sample size in a usability test address two issues: reliability and identifying most major problems. Take a look at the results of Comparative Usability Evaluation project. While sample size influences both factors it is not the only nor the major influence on these factors.
Oct
14
comment How can redicle technology speed up reading up to five times or more?
See this abstract for a summary of research supporting this answer.
Oct
14
comment Are users more likely to reach down to the later page results if infinite pagination is used as opposed to ordinary pagination
See this question for a link to an article about Etsy usability testing of infinite scrolling.
Oct
14
comment Cognitive strain by reading data in tables?
There is plenty of research on the effect of the difficulty of acquiring information on decision making. A simple summary is 'If the user can make a decision without the information and the benefit of acquiring additional information is outweighed by the difficulty of acquiring the information then the user will make the decision without acquiring additional information.' In the situation you describe, a table that is difficult to read may be ignored unless it is the only source of information on which to base a decision.
Sep
19
comment Original design choice of back and forward directions?
Here is evidence to support the claim that arrows point in the direction of tape movement. It is from 1954.
Sep
19
comment Original design choice of back and forward directions?
While reading an answer to this question, I saw the reference to Olsson. Is there any evidence that Olsson designed these controls? I've found nothing to support it.
Sep
19
comment What is the origin of the eject symbol?
Agree the symbol suggests movement. In the context of a cassette player, the horizontal line is the cassette and the arrow suggests movement of the cassette up, i.e., out of the play loop and into the hands of the operator.
Sep
19
comment What is the origin of the eject symbol?
In 1965, the line was above the triangle. See the left-most button on the Grundig C100
Sep
9
comment When to ask a user to take an action multiple times vs. batching it?
Time to execute the task may affect the decision to execute individually or in batch too. You can use a tool like CogTool to estimate task completion time for multiple actions and for batch execution.
Sep
9
comment When to ask a user to take an action multiple times vs. batching it?
This comment does not consider the 'follow' feature mentioned in the question. Instead, it deals with batch execution of a feature that (1) may take a long time to complete, and (2) may not complete succesfully. In that situation, you have to know: (1) whether unsuccessful completion of the action on one object in the list affects completion of the action against other objects in the list, (2) how to present problems encountered during batch execution, and (3) how the user will troubleshoot those problems.
Aug
4
comment Can we Quantify Cognitive Load?
Cognitive load is one aspect of workload - a topic studied extensively by the human factors community. See this TOC and paper for examples for measures of primary or secondary task performance, subjective assessment, and physiological measures. See this example which is available to anybody with an eye tracker - and lots of time.
Jul
21
comment why are the names on sports jerseys in all caps
Tinker's research proposes one model of reading. It is not the only model nor is it the most recent research on the topic. For example, see this paper which argues for greater readability of upper case type.