their SUS scores were similar to users who spent a lot more time on the site.<\/span><\/p>\nThe 60 Second Phenomenon<\/h4>\n
Somewhat surprisingly, the SUS scores from the 60 second group were between 8 and 12% higher than the 5 second and unlimited time groups (p <.01).<\/p>\n
I’m somewhat puzzled by this result and am unsure why users who are interrupted after one minute tend to rate websites as more usable than users who have only five seconds or an unlimited amount of time. One hypothesis is that these interrupted users have an inflated sense of accomplishment and assume they would complete the task and thus rate the website higher on the SUS.<\/p>\n
Prior website exposure doesn’t affect the patterns<\/h3>\n
Perhaps users already have preconceived notions of usability from prior visits to the websites. I used large public facing websites so it would make sense that a good proportion of users had some exposure.\u00a0 Fortunately I asked users how many times they’d visited each website. Across the websites, 70% of users reported having never visited the site before.<\/p>\n
When I compare the SUS scores for just these first-time users the same pattern does hold. The difference between the five second users and full-time users was larger (8%) but still not statistically significant (p >.11).<\/p>\n
<\/p>\n
The 60-second group again rated the websites highest\u201410 to 19% higher than the no limit and 5-second groups respectively. Again this confirms the bizarre result.<\/p>\n
Limitations<\/h3>\n
There could be a few reasons for these results. For example, the tasks I’ve used could be too homogeneous in their difficulty. Perhaps harder tasks would affect the ratings more.\u00a0 Also, a good portion of users might have been able to complete the tasks in under 60 seconds–thus making the website seem easier than users who had to complete two tasks. More research is needed to understand the effects of task difficulty, the number of tasks and task-length on the effects of SUS scores.<\/p>\n
The results of this analysis do however suggest that under typical conditions, perceptions of usability are formed within seconds of viewing a website<\/span>.<\/p>\nGiving users only five seconds to complete tasks generates SUS scores that are very similar to SUS scores from users taking 5 to 15 minutes to complete tasks. Usability, as measured by standardized questionnaires appears also to be strongly affected by initial impressions.<\/p>\n","protected":false},"excerpt":{"rendered":"
In a few seconds what can you tell about people\u2026 or websites? Some famous research has shown that student evaluations given after only a few seconds of video[pdf]are indistinguishable from evaluations from students who actually had the professor for an entire semester! There has been some relevant research on the importance of immediate website actions […]<\/p>\n","protected":false},"author":2,"featured_media":2147,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"_price":"field_56e41332a1ae5","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"Tribe__Tickets_Plus__Commerce__WooCommerce__Main","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"footnotes":""},"categories":[5,27],"tags":[6,28],"acf":[],"ticketed":false,"_links":{"self":[{"href":"https:\/\/measuringu.com\/wp-json\/wp\/v2\/posts\/345"}],"collection":[{"href":"https:\/\/measuringu.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/measuringu.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/measuringu.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/measuringu.com\/wp-json\/wp\/v2\/comments?post=345"}],"version-history":[{"count":3,"href":"https:\/\/measuringu.com\/wp-json\/wp\/v2\/posts\/345\/revisions"}],"predecessor-version":[{"id":37084,"href":"https:\/\/measuringu.com\/wp-json\/wp\/v2\/posts\/345\/revisions\/37084"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/measuringu.com\/wp-json\/wp\/v2\/media\/2147"}],"wp:attachment":[{"href":"https:\/\/measuringu.com\/wp-json\/wp\/v2\/media?parent=345"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/measuringu.com\/wp-json\/wp\/v2\/categories?post=345"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/measuringu.com\/wp-json\/wp\/v2\/tags?post=345"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}