{"id":138322,"date":"2024-09-14T10:19:12","date_gmt":"2024-09-14T10:19:12","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=138322"},"modified":"2024-09-14T10:19:14","modified_gmt":"2024-09-14T10:19:14","slug":"in-order-to-determine-the-effects-of-energy-drinks-on-womens-running-speed","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/09\/14\/in-order-to-determine-the-effects-of-energy-drinks-on-womens-running-speed\/","title":{"rendered":"In order to determine the effects of energy drinks on women&#8217;s running speed"},"content":{"rendered":"\n<p>In order to determine the effects of energy drinks on women&#8217;s running speed, researchers gave 300 women an energy drink and then recorded the time it took each of them to run 2 miles. After collecting the results, researchers concluded that energy drinks increase the speed of running in<\/p>\n\n\n\n<p>Which of the following further tests would best help to support this conclusion?<\/p>\n\n\n\n<p>A.<br>Repeat the same experiment, using 300 men<\/p>\n\n\n\n<p>B.<br>Repeat the experiment giving half of the women water and the other half the energy drink<\/p>\n\n\n\n<p>C.<br>Repeat the experiment giving the women two different energy drinks<\/p>\n\n\n\n<p>D.<br>Repeat the experiment, having half of the women run 2 miles and the other half run 5 miles<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The correct answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>The best test to support the conclusion that energy drinks increase running speed in women is:<\/p>\n\n\n\n<p><strong>B. Repeat the experiment giving half of the women water and the other half the energy drink<\/strong><\/p>\n\n\n\n<p><strong>Explanation:<\/strong><\/p>\n\n\n\n<p>To validate the conclusion that energy drinks increase running speed, it&#8217;s essential to establish a causal relationship between the energy drinks and the observed effects. The initial experiment involved giving 300 women an energy drink and recording their running times. The researchers concluded that energy drinks increase running speed based on these results. However, to support this conclusion robustly, it&#8217;s necessary to account for potential confounding factors and ensure that the observed effect is specifically due to the energy drink rather than other variables.<\/p>\n\n\n\n<p>Here&#8217;s why option B is the most appropriate follow-up test:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Controlled Comparison<\/strong>: Option B introduces a controlled comparison between two groups: one receiving the energy drink and the other receiving water. This design allows researchers to compare the effects of the energy drink directly against a neutral placebo (water). By including a control group that receives water, researchers can isolate the effect of the energy drink from other potential influences.<\/li>\n\n\n\n<li><strong>Internal Validity<\/strong>: By having a control group (water), the experiment controls for factors such as psychological effects (e.g., belief that one is getting a performance-enhancing substance) and any other external variables that might influence running speed. This makes it easier to attribute any differences in running speed directly to the energy drink.<\/li>\n\n\n\n<li><strong>Minimizing Bias<\/strong>: Using a control group helps to address potential biases and ensures that the results are due to the energy drink itself rather than other uncontrolled factors. It helps to verify whether the observed increase in running speed is genuinely due to the energy drink or if it might be attributable to other influences.<\/li>\n<\/ol>\n\n\n\n<p>In contrast, the other options do not directly address the specific effect of the energy drink in comparison to a control:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A<\/strong>: Repeating the experiment with men does not directly test the specific effect of the energy drink itself but rather compares gender differences, which is not the focus of the original conclusion.<\/li>\n\n\n\n<li><strong>C<\/strong>: Testing two different energy drinks would help compare the effectiveness of different products but does not control for the placebo effect or other variables as effectively as having a water control group.<\/li>\n\n\n\n<li><strong>D<\/strong>: Comparing different distances (2 miles vs. 5 miles) introduces a new variable (distance) and does not provide a direct test of the energy drink&#8217;s effect versus a neutral placebo.<\/li>\n<\/ul>\n\n\n\n<p>In summary, option B is the most effective way to ensure that the observed increase in running speed is indeed due to the energy drink and not other confounding factors.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In order to determine the effects of energy drinks on women&#8217;s running speed, researchers gave 300 women an energy drink and then recorded the time it took each of them to run 2 miles. After collecting the results, researchers concluded that energy drinks increase the speed of running in Which of the following further tests [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-138322","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/138322","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=138322"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/138322\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=138322"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=138322"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=138322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}