CTT tracking and usage
Websites using CTT by countrymarket share · top 8 countries
9%
🇺🇸US3.4%
🇬🇧GB3.2%
🇩🇪DE2.4%
🇦🇺AU2.2%
🇫🇷FR1.9%
🇻🇳VN1.9%
🇨🇦CA1.8%
🇷🇺RUWebsites using CTT by industrymarket share · top 6 industries
Education
Shopping
Technology & Computing
Hospitality & Restaurants
Marketing & Advertising
Food & Drink
0%6.3%13%19%25%
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We track 82,049 websites using CTT, along with their country, traffic, industry and platforms. There are 7,394 websites using CTT in United States.
Filter by country
🇺🇸 United States7,394 sites
🇬🇧 United Kingdom2,817 sites
🇩🇪 Germany2,616 sites
🇦🇺 Australia1,954 sites
🇫🇷 France1,803 sites
🇻🇳 Viet Nam1,541 sites
🇨🇦 Canada1,537 sites
🇷🇺 Russian Federation1,503 sites
🇹🇷 Turkey1,278 sites
🇧🇷 Brazil1,273 sites
🇵🇹 Portugal1,224 sites
🇪🇸 Spain1,130 sites
🇮🇹 Italy1,027 sites
🇮🇳 India965 sites
🇳🇱 Netherlands855 sites
🇨🇭 Switzerland719 sites
🇯🇵 Japan683 sites
🇵🇱 Poland672 sites
🇧🇪 Belgium476 sites
🇨🇿 Czechia389 sites
🇨🇳 China352 sites
🇦🇹 Austria313 sites
🇳🇿 New Zealand304 sites
🇸🇪 Sweden285 sites
🇲🇽 Mexico281 sites
🇭🇺 Hungary271 sites
🇷🇴 Romania269 sites
🇮🇷 Iran, Islamic Republic of258 sites
🇩🇰 Denmark244 sites
🇿🇦 South Africa208 sites
🇳🇴 Norway186 sites
🇮🇱 Israel185 sites
🇮🇪 Ireland180 sites
🇳🇬 Nigeria178 sites
🇮🇩 Indonesia169 sites
🇸🇬 Singapore169 sites
🇬🇷 Greece166 sites
🇦🇷 Argentina162 sites
🇨🇱 Chile162 sites
🇰🇷 Korea, Republic of144 sites
🇸🇰 Slovakia141 sites
🇫🇮 Finland122 sites
🇦🇪 United Arab Emirates116 sites
🇹🇼 Taiwan, Province of China112 sites
🇺🇦 Ukraine111 sites
🇲🇾 Malaysia100 sites
🇭🇰 Hong Kong97 sites
🇪🇬 Egypt80 sites
🇨🇴 Colombia78 sites
🇹🇭 Thailand65 sites
🇪🇪 Estonia64 sites
🇱🇹 Lithuania63 sites
🇵🇪 Peru56 sites
🇵🇭 Philippines56 sites
🇧🇬 Bulgaria50 sites
🇧🇾 Belarus47 sites
🇭🇷 Croatia47 sites
🇷🇸 Serbia46 sites
🇸🇮 Slovenia46 sites
🇵🇰 Pakistan45 sites
🇱🇺 Luxembourg35 sites
🇱🇻 Latvia32 sites
🇸🇦 Saudi Arabia31 sites
🇪🇨 Ecuador31 sites
🇧🇩 Bangladesh29 sites
🇰🇪 Kenya28 sites
🇹🇹 Trinidad and Tobago28 sites
🇮🇸 Iceland28 sites
🇬🇭 Ghana26 sites
🇰🇿 Kazakhstan26 sites
🇱🇰 Sri Lanka23 sites
🇨🇾 Cyprus20 sites
🇲🇦 Morocco20 sites
🇺🇾 Uruguay20 sites
🇹🇳 Tunisia17 sites
🇵🇷 Puerto Rico16 sites
🇬🇪 Georgia15 sites
🇻🇪 Venezuela, Bolivarian Republic of15 sites
🇵🇦 Panama14 sites
🇲🇹 Malta13 sites
🇬🇹 Guatemala13 sites
🇨🇷 Costa Rica12 sites
🇧🇦 Bosnia and Herzegovina11 sites
🇩🇿 Algeria11 sites
🇳🇵 Nepal10 sites
🇸🇳 Senegal10 sites
🇦🇿 Azerbaijan9 sites
🇩🇴 Dominican Republic9 sites
🇲🇳 Mongolia9 sites
🇲🇨 Monaco8 sites
🇺🇿 Uzbekistan8 sites
🇯🇴 Jordan7 sites
🇲🇴 Macao7 sites
🇲🇩 Moldova, Republic of7 sites
🇶🇦 Qatar7 sites
🇺🇬 Uganda7 sites
🇰🇾 Cayman Islands7 sites
🇹🇿 Tanzania, United Republic of7 sites
🇰🇼 Kuwait7 sites
🇲🇰 North Macedonia6 sites
🇱🇮 Liechtenstein6 sites
🇨🇲 Cameroon6 sites
🇵🇾 Paraguay6 sites
🇲🇲 Myanmar5 sites
🇲🇿 Mozambique5 sites
🇧🇴 Bolivia, Plurinational State of5 sites
🇦🇬 Antigua and Barbuda5 sites
🇯🇲 Jamaica5 sites
🇧🇯 Benin5 sites
🇹🇬 Togo4 sites
🇧🇭 Bahrain4 sites
🇧🇼 Botswana4 sites
🇸🇴 Somalia4 sites
🇲🇸 Montserrat4 sites
🇲🇺 Mauritius4 sites
🇱🇧 Lebanon4 sites
🇻🇨 Saint Vincent and the Grenadines4 sites
🇸🇻 El Salvador4 sites
🇭🇳 Honduras4 sites
🇷🇪 Réunion3 sites
🇸🇱 Sierra Leone3 sites
🇳🇦 Namibia3 sites
🇧🇳 Brunei Darussalam3 sites
🇴🇲 Oman3 sites
🇨🇮 Côte d'Ivoire3 sites
🇷🇼 Rwanda3 sites
🇸🇲 San Marino3 sites
🇦🇸 American Samoa3 sites
🇦🇩 Andorra3 sites
🇳🇨 New Caledonia3 sites
🇪🇹 Ethiopia3 sites
🇦🇫 Afghanistan3 sites
🇿🇼 Zimbabwe3 sites
🇦🇲 Armenia2 sites
🇰🇭 Cambodia2 sites
🇵🇸 Palestine, State of2 sites
🇵🇬 Papua New Guinea2 sites
🇸🇩 Sudan2 sites
🇹🇨 Turks and Caicos Islands2 sites
🇱🇨 Saint Lucia2 sites
🇮🇲 Isle of Man2 sites
🇨🇬 Congo2 sites
🇦🇱 Albania2 sites
🇨🇰 Cook Islands2 sites
🇰🇬 Kyrgyzstan2 sites
🇫🇴 Faroe Islands2 sites
🇧🇹 Bhutan2 sites
🇧🇧 Barbados2 sites
🇳🇮 Nicaragua2 sites
🇱🇷 Liberia1 sites
🇱🇸 Lesotho1 sites
🇵🇲 Saint Pierre and Miquelon1 sites
🇵🇼 Palau1 sites
🇲🇼 Malawi1 sites
🇨🇫 Central African Republic1 sites
🇧🇸 Bahamas1 sites
🇲🇻 Maldives1 sites
🇯🇪 Jersey1 sites
🇽🇰 Kosovo1 sites
🇱🇦 Lao People's Democratic Republic1 sites
🇬🇸 South Georgia and the South Sandwich Islands1 sites
🇲🇶 Martinique1 sites
🇧🇮 Burundi1 sites
🇸🇷 Suriname1 sites
🇬🇮 Gibraltar1 sites
🇿🇲 Zambia1 sites
🇨🇼 Curaçao1 sites
🇨🇩 Congo, The Democratic Republic of the1 sites
🇬🇵 Guadeloupe1 sites
🇮🇶 Iraq1 sites
🇹🇲 Turkmenistan1 sites
🇫🇲 Micronesia, Federated States of1 sites
🇦🇼 Aruba1 sites
🇻🇺 Vanuatu1 sites
🇬🇾 Guyana1 sites
🇬🇬 Guernsey1 sites
🇨🇺 Cuba1 sites
🇦🇽 Åland Islands1 sites
About CTT
CTT is an IT education provider that works with companies and provides high-quality educational programs. It was founded in 1990. It is headquartered in Miami, Florida. CTT’s objective is to help companies improve their infrastructure, skills and practices. CTT is known for its strong presence in Latin America. CTT is known for its highly successful methodology. It has sound knowledge and stays fully updated with the best practices of the industry. It has a highly technologically driven education style. It has a high degree of specialization in technical aspects. It also has sound knowledge of interpersonal skills. It enables companies to develop their talent and meet their goals effectively.
Category
Official website
www.ctt.pt↗
Websites using CTT
showing 25 of 82,049| Website | Country | Traffic | Industry |
|---|---|---|---|
| 🇩🇪DE | Top 500 | Entertainment | |
 shopify.com | 🇨🇦CA | Top 500 | Software Development |
| 🇷🇺RU | Top 500 | Technology & Computing | |
| 🇺🇸US | Top 500 | Entertainment | |
| 🇺🇸US | Top 500 | Software Development | |
| - | Top 500 | Technology & Computing | |
| 🇧🇷BR | Top 1K | Technology & Computing | |
| 🇺🇸US | Top 1K | Technology & Computing | |
| - | Top 1K | Software Development | |
| 🇯🇵JP | Top 1K | Telecommunications | |
| 🇺🇸US | Top 1K | Technology & Computing | |
| 🇺🇸US | Top 1K | Software Development | |
| 🇺🇸US | Top 1K | Environment & Sustainability | |
| 🇨🇳CN | Top 1K | Software Development | |
| 🇦🇺AU | Top 1K | Entertainment | |
| 🇮🇩ID | Top 1K | Technology & Computing | |
| 🇫🇷FR | Top 5K | Software Development | |
| 🇩🇪DE | Top 5K | Business & Finance | |
| 🇺🇸US | Top 5K | Software Development | |
| 🇺🇸US | Top 5K | Technology & Computing | |
| 🇧🇷BR | Top 5K | Technology & Computing | |
| 🇮🇷IR | Top 5K | Software Development | |
| 🇷🇺RU | Top 5K | Real Estate | |
| 🇦🇺AU | Top 5K | Shopping | |
| 🇨🇳CN | Top 5K | Technology & Computing |
Showing 25 of 82,049 websitesView detailed list →
Frequently asked
What is CTT?›
CTT stands for Classical Test Theory, a psychological measurement theory that provides a foundation for understanding how test scores relate to the actual attributes or abilities of test-takers.
How does CTT differ from Item Response Theory (IRT)?›
While CTT focuses on the overall test scores and assumes that all test items are of equal importance, IRT examines the properties of individual test items and their relationship to the overall ability of the test-taker.
What are the main components of CTT?›
The main components of CTT include observed scores, true scores, and measurement error. Observed scores are the actual scores obtained by test-takers, true scores represent their actual ability on the construct being measured, and measurement error refers to any discrepancy between observed scores and true scores.
Why is reliability important in CTT?›
Reliability is crucial in CTT because it indicates the consistency of a test's scores. High reliability indicates that measurement error is minimal, leading to a higher confidence that observed scores accurately represent true scores.
Can CTT be applied to different types of assessments?›
Yes, CTT can be applied to various types of assessments, including but not limited to educational testing, psychological measurement, and evaluation of employee performance. The primary requirement is that the assessment measures a specific, single construct or attribute.
