{"id":9755,"date":"2025-09-30T19:45:02","date_gmt":"2025-09-30T17:45:02","guid":{"rendered":"https:\/\/www.mickyweis.com\/kvantitativ-metode-den-komplette-begynderguide\/"},"modified":"2025-10-08T02:01:42","modified_gmt":"2025-10-08T00:01:42","slug":"quantitative-methods-guide","status":"publish","type":"post","link":"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/","title":{"rendered":"Quantitative methods: beginner\u2019s guide to analysis and data"},"content":{"rendered":"<p>Quantitative method is one of the most common approaches for collecting and analyzing data.<\/p>\n<p>In digital marketing, it is used for A\/B tests, web traffic analysis, measuring campaign performance, and optimizing conversion rates.<\/p>\n<p><strong>In short:<\/strong> when you want numbers on how things are connected, quantitative method is the way forward.<\/p>\n<p>Let\u2019s take a closer look at what quantitative method really covers, when it makes sense to use it, and the steps you need to go through if you want to work with it in practice.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Jump to section<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #000000;color:#000000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #000000;color:#000000\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#What_is_quantitative_method_and_when_is_it_used\" >What is quantitative method, and when is it used<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#The_difference_between_quantitative_and_qualitative_method\" >The difference between quantitative and qualitative method<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Formulating_problem_statements_and_hypotheses\" >Formulating problem statements and hypotheses<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Choosing_population_and_sample\" >Choosing population and sample<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Data_collection_methods\" >Data collection methods<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Questionnaires\" >Questionnaires<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Observation\" >Observation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Experiments\" >Experiments<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Register_data\" >Register data<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Measuring_and_operationalizing_variables\" >Measuring and operationalizing variables<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Validity_and_reliability_in_quantitative_research\" >Validity and reliability in quantitative research<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Introduction_to_statistical_analysis\" >Introduction to statistical analysis<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Descriptive_statistics\" >Descriptive statistics<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Correlation_analysis\" >Correlation analysis<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Regression_analysis\" >Regression analysis<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Significance_tests\" >Significance tests<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Interpreting_and_presenting_results\" >Interpreting and presenting results<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Typical_pitfalls_and_how_to_avoid_them\" >Typical pitfalls and how to avoid them<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.mickyweis.com\/en\/quantitative-methods-guide\/#Getting_started_with_quantitative_method\" >Getting started with quantitative method<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_quantitative_method_and_when_is_it_used\"><\/span>What is quantitative method, and when is it used<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Quantitative method is about collecting data in the form of numbers that can be measured, compared, and analyzed statistically.<\/p>\n<p>It is a systematic way of investigating a problem where results can be presented as percentages, averages, graphs, and tables.<\/p>\n<p><strong>The method is especially used when you want:<\/strong><\/p>\n<ul>\n<li><strong>General insights about an entire target group<\/strong> (e.g., how many percent prefer one brand over another).<\/li>\n<li><strong>Measuring correlations<\/strong> (e.g., whether there is a statistical relationship between age and buying behavior).<\/li>\n<li><strong>Effect tests<\/strong> (e.g., whether a campaign actually increases the <a href=\"https:\/\/www.mickyweis.com\/en\/conversion-rate-ecommerce\/\">conversion rate<\/a>).<\/li>\n<\/ul>\n<p>Quantitative method is therefore suitable when you need to generalize your results and make data-driven decisions.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_difference_between_quantitative_and_qualitative_method\"><\/span>The difference between quantitative and qualitative method<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>While quantitative method focuses on numbers, qualitative method works with words, descriptions, and in-depth understanding.<\/p>\n<p><strong>Quantitative method:<\/strong> Measures breadth. It tells you how many or how often.<br \/>\n<strong>Qualitative method:<\/strong> Measures depth. It explains why and how.<\/p>\n<p><strong>Example:<\/strong><\/p>\n<p>If you run a webshop and want to know how many customers leave the cart without buying, you use quantitative method.<\/p>\n<p>If you want to understand why they leave the cart, a qualitative method like interviews is more appropriate.<\/p>\n<p>In practice, many companies combine both approaches to get both overview and insight.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Formulating_problem_statements_and_hypotheses\"><\/span>Formulating problem statements and hypotheses<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A quantitative study always starts with a clear problem statement. It defines what you want to investigate and why it is relevant.<\/p>\n<p>Next, hypotheses are formulated \u2013 your expectations of what the results will show.<\/p>\n<p><strong>Example:<\/strong><\/p>\n<p><strong>Problem statement:<\/strong> <em>How does the newsletter design affect open rates?<\/em><br \/>\n<strong>Hypothesis:<\/strong> <em>A newsletter with a personalized subject line achieves a higher open rate than a generic one.<\/em><\/p>\n<p>The hypothesis acts as a guideline for the study and makes it easier to analyze the results afterward.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Choosing_population_and_sample\"><\/span>Choosing population and sample<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Once the problem statement is in place, you need to define your population \u2013 the entire group you want to study.<\/p>\n<p>Since it is often impossible (or too expensive) to collect data from the entire population, a sample is chosen. It is a representative part of the target group used to draw conclusions about the whole.<\/p>\n<p><strong>Example:<\/strong><\/p>\n<p>If you want to study Danish consumers\u2019 opinions on a new product, all of Denmark is your population.<\/p>\n<p>But a sample of, for example, 1,000 people can be sufficient if it is representative in terms of age, gender, and geography.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Data_collection_methods\"><\/span>Data collection methods<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Once you have defined your problem statement and selected your sample, the next step is to decide how to collect your <a href=\"https:\/\/www.mickyweis.com\/en\/big-data-webanalysis\/\">data<\/a>. There are several methods, each with strengths and weaknesses:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Questionnaires\"><\/span><strong>Questionnaires<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The most common method because it is both effective and scalable.<\/p>\n<p>Questionnaires can be distributed digitally via <a href=\"https:\/\/www.mickyweis.com\/en\/e-mail-marketing-guide\/\">email<\/a>, social media, or websites, and they can easily be adapted to different audiences.<\/p>\n<p>The advantage is reaching many respondents quickly and obtaining precise, comparable data. The drawback is low response rates and potential misunderstanding if questions are not clearly formulated.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Observation\"><\/span>Observation<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Behavior is recorded in practice. This can range from measuring how many users click a button on a website to physically observing customer behavior in a store.<\/p>\n<p>Observations provide valuable data because they are based on actual actions, not just self-reported answers. However, the method often requires more time and resources.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Experiments\"><\/span><strong>Experiments<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A very popular method in digital marketing is <strong><a href=\"https:\/\/www.mickyweis.com\/en\/a-b-testing\/\">A\/B<\/a><\/strong><a href=\"https:\/\/www.mickyweis.com\/en\/a-b-testing\/\"> testi<\/a><a href=\"https:\/\/www.mickyweis.com\/en\/a-b-testing\/\">ng<\/a>, where two versions of, for example, a landing page are tested to see which performs best.<\/p>\n<p>Experiments allow measuring the effect of a specific change because you control the variables. This makes the method strong but requires enough visitors for statistically significant results.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Register_data\"><\/span>Register data<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Here, existing data sources are used, such as Danmarks Statistik or internal <a href=\"https:\/\/www.mickyweis.com\/en\/customer-management-crm\/\">CRM<\/a> systems.<\/p>\n<p>The advantage is working with large, often very reliable datasets without collecting the data yourself. The drawback is that data may not always be tailored to your specific problem.<\/p>\n<p>The choice of method always depends on what you want to study, how quickly you need answers, and what resources are available.<\/p>\n<div class=\"greenbox\">\n<h2><span class=\"ez-toc-section\" id=\"Measuring_and_operationalizing_variables\"><\/span>Measuring and operationalizing variables<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>One of the biggest challenges in quantitative method is translating broad or abstract concepts into measurable variables. This process is called operationalization.<\/p>\n<p>Suppose you want to study <a href=\"https:\/\/www.mickyweis.com\/en\/loyalty-progams\/\">customer loyalty<\/a>.<\/p>\n<p>The concept itself is vague \u2013 it can cover everything from purchase frequency to willingness to recommend. You need to define exactly how you will measure loyalty. For example:<\/p>\n<ul>\n<li><strong>Purchase behavior:<\/strong> How often does the customer buy from your webshop?<\/li>\n<li><strong><a href=\"https:\/\/www.mickyweis.com\/en\/net-promoter-score\/\">Net Promoter Score (NPS)<\/a>:<\/strong> Would the customer recommend your brand to others on a scale from 0-10?<\/li>\n<li><strong>Duration:<\/strong> How long has the customer been active?<\/li>\n<\/ul>\n<p>Operationalizing the concept ensures consistent measurement and allows comparison across time or groups. It also makes the data easier to handle and analyze.<\/p>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Validity_and_reliability_in_quantitative_research\"><\/span>Validity and reliability in quantitative research<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>For your results to be useful in practice, they must be both valid and reliable.<\/p>\n<ul>\n<li><strong>Validity:<\/strong> Measures whether you are actually measuring what you intend. If your goal is customer satisfaction but your questions mainly address price perception, validity is low. Good validity requires well-defined questions and a clear connection to the problem statement.<\/li>\n<li><strong>Reliability:<\/strong> Measures consistency. If you conduct the same study twice under the same conditions, results should be similar. Large variations indicate low reliability.<\/li>\n<\/ul>\n<p>A good study achieves both high validity and high reliability, which requires precise questions, a representative sample, and a well-thought-out data collection process.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Introduction_to_statistical_analysis\"><\/span>Introduction to statistical analysis<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>After collecting data, the next step is analysis. Statistics turns raw numbers into meaningful insights. Some common types of analysis include:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Descriptive_statistics\"><\/span><strong>Descriptive statistics<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Used to create an overview of the data. For example, average age of respondents, the percentage answering \u201cyes,\u201d or how responses are distributed on a scale.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Correlation_analysis\"><\/span><strong>Correlation analysis<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Used to examine whether two variables are related. For example, if customer satisfaction increases when delivery time decreases. Remember that correlation does not imply causation.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Regression_analysis\"><\/span><strong>Regression analysis<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A more advanced tool that predicts one variable based on one or more others. For example, testing whether age and gender influence the likelihood of clicking an ad.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Significance_tests\"><\/span><strong>Significance tests<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Used to determine whether results are due to chance or statistically reliable. For example, testing two versions of a landing page can reveal whether the difference in conversion rate is real.<\/p>\n<p>Although statistical analysis can seem complex, many tools (Excel, <a href=\"https:\/\/www.mickyweis.com\/en\/google-analytics-ga4\/\">Google Analytics<\/a>, SPSS, or survey platforms) automate much of the process and make results more accessible.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Interpreting_and_presenting_results\"><\/span>Interpreting and presenting results<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Even advanced analyses lose value if results cannot be translated into clear insights. Interpretation and presentation are therefore critical.<\/p>\n<p><strong>When interpreting data, consider questions such as:<\/strong><\/p>\n<p><em>Do results support your hypothesis, or point in a different direction?<\/em><\/p>\n<p><em>Are there surprising numbers that require deeper explanation?<\/em><\/p>\n<p><em>How can results be applied to a concrete marketing strategy or business decision?<\/em><\/p>\n<p><strong>For presentation, think visually:<\/strong><\/p>\n<ul>\n<li><strong>Graphs and tables:<\/strong> Show patterns and trends clearly.<\/li>\n<li><strong>Bullet points:<\/strong> Highlight key takeaways for quick understanding.<\/li>\n<li><strong><a href=\"https:\/\/www.mickyweis.com\/en\/storytelling\/\">Storytelling<\/a>:<\/strong> Place results in context, e.g., \u201c40% more customers click on ad A, indicating a more personalized message increases engagement.\u201d<\/li>\n<\/ul>\n<p>This way, numbers become a story that drives action.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Typical_pitfalls_and_how_to_avoid_them\"><\/span>Typical pitfalls and how to avoid them<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Like all methods, quantitative method has challenges:<\/p>\n<ul>\n<li><strong>Small samples:<\/strong> Results are not representative.<\/li>\n<li><strong>Leading questions:<\/strong> Wording that influences responses.<\/li>\n<li><strong>Overinterpretation:<\/strong> Drawing conclusions unsupported by data.<\/li>\n<li><strong>Ignoring context:<\/strong> Numbers don\u2019t tell the whole story \u2013 consider supplementing with qualitative methods.<\/li>\n<\/ul>\n<p>Awareness of these pitfalls ensures your research yields reliable and useful results.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Getting_started_with_quantitative_method\"><\/span>Getting started with quantitative method<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Quantitative method may seem technical at first, but it is a logical, structured approach to gaining insights.<\/p>\n<p>The method allows you to measure behavior, uncover patterns, and test hypotheses \u2013 all in a way that translates directly into strategic marketing decisions.<\/p>\n<p>Once you master the process from problem formulation to presenting results, quantitative method becomes an indispensable tool in your toolkit.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Quantitative method is one of the most common approaches for collecting and analyzing data. In digital marketing, it is used for A\/B tests, web traffic [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":6212,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[93],"series":[],"class_list":["post-9755","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-marketing-general-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Quantitative research: a beginner\u2019s roadmap to data insights<\/title>\n<meta name=\"description\" content=\"Quantitative methods involve collecting data in numerical form, which can be measured, compared, and analyzed statistically. 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