{"id":16192,"date":"2015-06-07T17:22:36","date_gmt":"2015-06-07T17:22:36","guid":{"rendered":"https:\/\/www.sisinternational.com\/?page_id=16192"},"modified":"2025-08-29T18:46:17","modified_gmt":"2025-08-29T22:46:17","slug":"in-depth-interviews","status":"publish","type":"page","link":"https:\/\/www.sisinternational.com\/nl\/oplossingen\/kwalitatieve-kwantitatieve-onderzoeksoplossingen\/in-depth-interviews\/","title":{"rendered":"Diepgaande interviews"},"content":{"rendered":"<h1 class=\"gb-headline gb-headline-11721615 gb-headline-text\">Diepgaande interviews<\/h1>\n\n\n\n<figure class=\"gb-block-image gb-block-image-0e33137d\"><img loading=\"lazy\" decoding=\"async\" width=\"1456\" height=\"816\" class=\"gb-image gb-image-0e33137d\" src=\"https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-5.jpg\" alt=\"SIS Internationaal Marktonderzoek &amp; Strategie\" title=\"Interview (5)\" srcset=\"https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-5.jpg 1456w, https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-5-300x168.jpg 300w, https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-5-1024x574.jpg 1024w, https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-5-768x430.jpg 768w, https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-5-18x10.jpg 18w\" sizes=\"auto, (max-width: 1456px) 100vw, 1456px\"><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<h2 class=\"wp-block-heading p1\">What is an In-Depth Interview (\u201cIDI\u201d)?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading p1\">An in-depth interview is a qualitative research method in which just one person is interviewed, usually for 1.5 to 2 hours.<\/h3>\n\n\n\n<p class=\"p1\">Also known as a &#8216;one-on-one&#8217;, there are instances when a third individual may be present, such as a client\u2019s technical expert, engineer, or product development person who can probe and\/or clarify questions about a specific subject matter.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How is an In-Depth Interview conducted?<\/h2>\n\n\n\n<p>IDIs are normally conducted face-to-face but occasionally can be done over the phone. When both parties have them available, a mix can be accomplished using webcams, FaceTime, Skype, or similar videoconferencing tools.<\/p>\n\n\n\n<p>A <span style=\"text-decoration: underline;\">discussion guide<\/span> frames the conversation. Many questions are open-ended rather than yes\/no or multiple-choice. Because an IDI can veer off in many directions, leaving adequate time to explore tangential paths is important.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">When to use IDIs<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">There are situations where a personal interview is the best, and sometimes the only method that makes sense for eliciting information from a respondent.<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Doctors, dentists and nurses for instance may be asked about very <span style=\"text-decoration: underline;\">sensitive topics<\/span> that they would prefer not to discuss in a group setting.A trained researcher may be able to interview over the phone if the workplace or an offsite meeting room is not available for such a discussion.<\/li>\n\n\n\n<li>Like health, a person\u2019s financial or sexual activity may differ from or be more complex than one\u2019s peers. Despite a reluctance to discuss such private matters in front of a group of strangers, a subject generally feels more relaxed and open in a conversation with just one other person as exists in an in-depth interview.<\/li>\n\n\n\n<li>Technology users have unique experiences with their devices that can best be captured, discussed, reported and recorded during a one-on-one interview. Questions about usability, intuitiveness, discoverability and meeting of expectations can all be explored, e.g. while a subject is searching for content on a website, playing a video game, using an app, or multitasking on a smart phone.<\/li>\n\n\n\n<li>If the desire is to ensure that feedback is obtained from every respondent, an IDI eliminates the role of a dominant, leading personality that may occur in a focus group.<\/li>\n\n\n\n<li>IDIs may be especially helpful in <a class=\"wpil_keyword_link\" href=\"https:\/\/www.sisinternational.com\/nl\/b2b-research\/\"   title=\"B2B Research\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"798\">B2B research<\/a> where subjects who possess unique job skills and knowledge are sought.<\/li>\n\n\n\n<li>One helpful feature of an in-person interview is that body language, facial expressions, moods, and other nonverbal behaviors can be directly observed. For example, does a topic make someone smile\/laugh or feel uncomfortable? Such cues provide added information that can be integrated with what a person thinks about a product, concept, or message.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Costs and other tradeoffs<\/h2>\n\n\n\n<figure class=\"gb-block-image gb-block-image-f4d04870\"><img loading=\"lazy\" decoding=\"async\" width=\"1456\" height=\"816\" class=\"gb-image gb-image-f4d04870\" src=\"https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-6.jpg\" alt=\"SIS Internationaal Marktonderzoek &amp; Strategie\" title=\"Interview (6)\" srcset=\"https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-6.jpg 1456w, https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-6-300x168.jpg 300w, https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-6-1024x574.jpg 1024w, https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-6-768x430.jpg 768w, https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-6-18x10.jpg 18w\" sizes=\"auto, (max-width: 1456px) 100vw, 1456px\"><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Interviewing one person at a time is one of the most expensive forms of qualitative research. The key value is that a detailed understanding of an issue, product or service can be obtained. A small group of IDIs can provide the majority of content to pursue in focus groups, or surveys administered to a larger, more projectable population sample.<\/li>\n\n\n\n<li>While a focus group moderator can gain input from 10 people in the same amount of time required for one in-depth interview, that method involves the costs of facility rental and refreshments, plus the expense of having clients commute to,and spend time viewing the discussion. Also, compared to a 90 minute in-depth interview, a focus group member generally participates (speaks) for at most about one-tenth of the session, or fewer than 10 minutes.<\/li>\n\n\n\n<li>Compensation for participating in either an IDI or focus group tends to be about the same amount.&nbsp; It will vary depending upon the profession and other demographics that impact the difficulty of finding qualified and willing recruits.<\/li>\n\n\n\n<li>Scheduling an IDI with one person takes less time than trying to assemble several people for a focus group.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Final comment<\/strong>. In-depth interviewing is a beneficial research method, but because of its limited number of subjects (usually 10-25), results should not be used to project to a broad audience. Rather, they should be complemented by and form the basis of questions for focus groups and larger-scale surveys.<\/h3>\n\n\n\n<h2 class=\"wp-block-heading\">Onze vestigingslocatie in New York<\/h2>\n\n\n\n<p>\n\n\n\n<iframe loading=\"lazy\" src=\"https:\/\/www.google.com\/maps\/embed?pb=!1m18!1m12!1m3!1d3022.976188376966!2d-73.99130312499956!3d40.740549471389315!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0x89c259a15798c731%3A0xd695d09bdd495f25!2s11%20E%2022nd%20St%20FL%202%2C%20New%20York%2C%20NY%2010010%2C%20USA!5e0!3m2!1sen!2spe!4v1726171763526!5m2!1sen!2spe\" width=\"600\" height=\"450\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"><\/iframe>\n\n\n\n<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">11 E 22nd Street, 2e verdieping, New York, NY 10010 T: +1(212) 505-6805<\/h3>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span style=\"font-weight: 400;\">Over SIS Internationaal<\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/www.sisinternational.com\/nl\/\"><span style=\"font-weight: 400;\">SIS Internationaal<\/span><\/a><span style=\"font-weight: 400;\"> biedt kwantitatief, kwalitatief en strategisch onderzoek. Wij bieden data, tools, strategie\u00ebn, rapporten en inzichten voor besluitvorming. Wij voeren ook interviews, enqu\u00eates, focusgroepen en andere marktonderzoeksmethoden en -benaderingen uit.<\/span><a href=\"https:\/\/www.sisinternational.com\/nl\/over-sis-internationaal-onderzoek\/contact-sis-international-market-research\/\"><span style=\"font-weight: 400;\"> Neem contact met ons op<\/span><\/a><span style=\"font-weight: 400;\"> voor uw volgende marktonderzoeksproject.<\/span><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Er zijn situaties waarin een persoonlijk diepgaand interview de beste en soms de enige zinvolle methode is om informatie te verkrijgen.<\/p>","protected":false},"author":1,"featured_media":62679,"parent":14660,"menu_order":7,"comment_status":"open","ping_status":"open","template":"","meta":{"_uag_custom_page_level_css":"","footnotes":""},"class_list":["post-16192","page","type-page","status-publish","has-post-thumbnail"],"uagb_featured_image_src":{"full":["https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-5.jpg",1456,816,false],"thumbnail":["https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-5-150x150.jpg",150,150,true],"medium":["https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-5-300x168.jpg",300,168,true],"medium_large":["https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-5-768x430.jpg",768,430,true],"large":["https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-5-1024x574.jpg",1024,574,true],"1536x1536":["https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-5.jpg",1456,816,false],"2048x2048":["https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-5.jpg",1456,816,false],"trp-custom-language-flag":["https:\/\/www.sisinternational.com\/wp-content\/uploads\/2025\/08\/Interview-5-18x10.jpg",18,10,true]},"uagb_author_info":{"display_name":"Ruth Stanat","author_link":"https:\/\/www.sisinternational.com\/nl\/author\/expert\/"},"uagb_comment_info":0,"uagb_excerpt":"There are situations where a personal In-Depth Interviews are the best, and sometimes the only method that makes sense for eliciting information.","_links":{"self":[{"href":"https:\/\/www.sisinternational.com\/nl\/wp-json\/wp\/v2\/pages\/16192","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sisinternational.com\/nl\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.sisinternational.com\/nl\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.sisinternational.com\/nl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sisinternational.com\/nl\/wp-json\/wp\/v2\/comments?post=16192"}],"version-history":[{"count":8,"href":"https:\/\/www.sisinternational.com\/nl\/wp-json\/wp\/v2\/pages\/16192\/revisions"}],"predecessor-version":[{"id":75213,"href":"https:\/\/www.sisinternational.com\/nl\/wp-json\/wp\/v2\/pages\/16192\/revisions\/75213"}],"up":[{"embeddable":true,"href":"https:\/\/www.sisinternational.com\/nl\/wp-json\/wp\/v2\/pages\/14660"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sisinternational.com\/nl\/wp-json\/wp\/v2\/media\/62679"}],"wp:attachment":[{"href":"https:\/\/www.sisinternational.com\/nl\/wp-json\/wp\/v2\/media?parent=16192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}