tv.qiagenbioinformatics.com marketingbiox@qiagen.com https://tv.qiagenbioinformatics.com Watch tutorials, interviews and much more on our web based TV channel! en-us Visualplatform http://blogs.law.harvard.edu/tech/rss tv.qiagenbioinformatics.com CLC bio TV Watch tutorials, interviews and much more on our web based TV channel! clc bio tv, bioinformatics, genomics, research episodic no https://tv.qiagenbioinformatics.com/files/rv0.0/sitelogo.gif https://tv.qiagenbioinformatics.com http://tv.qiagenbioinformatics.com/photo/19605716/understanding-the-p-value-of <p>Learn how to interpret your p-value of overlaps results in IPA. You can gain a deeper understanding of the right-tailed Fisher’s Exact Test, why it’s used in IPA, how the results are calculated, and caveats to keep in mind when interpreting your results.<br>For more information visit&nbsp;our <a href="https://www.qiagenbioinformatics.com/products/ingenuity-pathway-analysis/?cmpid=BIOX_WEB_BioX_20191605_tv.qiagenbioinformatics_Webinar_BioxBA_Must_Win_1_BIOX"><u><b>website</b></u></a><br><br>Sections:<br><div>0:00-1:09 &nbsp;Introduction to the video. The two types of p-values that are relevant for IPA and how they differ.</div><div>1:09-2:25 &nbsp;History of the Fisher’s Exact Test: the “Lady Tasting Tea” experiment.</div><div>2:25-5:50 &nbsp;Hypothesis testing for enrichment in IPA. The reference set, the null hypothesis used, and the overlap of molecules defined.</div><div>5:51-7:58 &nbsp;Why the right-tailed Fisher’s Exact Test is used in IPA.</div><div>7:58- 8:41 &nbsp;Explanation of sampling and expected proportions from the hypergeometric distribution.</div><div>8:41-9:34 &nbsp;Defining significance levels in the distribution. Why only the right-tailed, rather than two-tailed test, is considered in IPA.</div><div>9:35-11:04 &nbsp;The p-value defined and default significance level used in IPA.</div><div>11:04-11:12 &nbsp;How the p-value is calculated. &nbsp;How data is entered into the 2 x 2 contingency table and the formula used.</div><div>11:13-13:34 &nbsp;Example calculation and interpretation using the “Lady Tasting Tea” experimental data. Why the p-value of overlap calculations are Exact.</div><div>13:35-15:09 &nbsp;Transcriptomics example: Number of molecules tested and how they are categorized.</div><div>15:10-16:10 &nbsp;Transcriptomics example: data in 2 x2 contingency table, p-value calculation performed and interpreted.</div><div>16:11-18:07 &nbsp;Caveats for using and interpreting the p-value of overlap statistic in IPA.</div><div>18:08-18:36 &nbsp;Where to find more information about IPA and Customer Support information.</div></p><p><a href="http://tv.qiagenbioinformatics.com/photo/19605716/understanding-the-p-value-of"><img src="http://tv.qiagenbioinformatics.com/19476794/19605716/3f010f6e26d0f172f765bc2ed547ff43/standard/download-2-thumbnail.jpg" width="600" height="338"/></a></p> http://tv.qiagenbioinformatics.com/photo/19605716 Fri, 27 Jun 2025 21:28:20 GMT Understanding the P-Value of Overlap Statistic in IPA Learn how to interpret your p-value of overlaps results in IPA. You can gain a deeper understanding of the right-tailed Fisher’s Exact Test, why it’s used in IPA, how the results are calculated, and caveats to keep in mind when interpreting your results.For more information visitour websiteSections:0:00-1:09 Introduction to the video. The two types of p-values that are relevant for IPA and how they differ.1:09-2:25 History of the Fisher’s Exact Test: the “Lady Tasting Tea” experiment.2:25-5:50 Hypothesis testing for enrichment in IPA. The reference set, the null hypothesis used, and the overlap of molecules defined.5:51-7:58 Why the right-tailed Fisher’s Exact Test is used in IPA.7:58- 8:41 Explanation of sampling and expected proportions from the hypergeometric distribution.8:41-9:34 Defining significance levels in the distribution. Why only the right-tailed, rather than two-tailed test, is considered in IPA.9:35-11:04 The p-value defined and default significance level used in IPA.11:04-11:12 How the p-value is calculated. How data is entered into the 2 x 2 contingency table and the formula used.11:13-13:34 Example calculation and interpretation using the “Lady Tasting Tea” experimental data. Why the p-value of overlap calculations are Exact.13:35-15:09 Transcriptomics example: Number of molecules tested and how they are categorized.15:10-16:10 Transcriptomics example: data in 2 x2 contingency table, p-value calculation performed and interpreted.16:11-18:07 Caveats for using and interpreting the p-value of overlap statistic in IPA.18:08-18:36 Where to find more information about IPA and Customer Support information. Learn how to interpret your p-value of overlaps results in IPA. You can gain a deeper understanding of the right-tailed Fisher’s Exact Test, why it’s used in IPA, how the results are calculated, and caveats to keep in mind when interpreting your... tv.qiagenbioinformatics.com 18:37 <p>Learn how to interpret your p-value of overlaps results in IPA. You can gain a deeper understanding of the right-tailed Fisher’s Exact Test, why it’s used in IPA, how the results are calculated, and caveats to keep in mind when interpreting your results.<br>For more information visit&nbsp;our <a href="https://www.qiagenbioinformatics.com/products/ingenuity-pathway-analysis/?cmpid=BIOX_WEB_BioX_20191605_tv.qiagenbioinformatics_Webinar_BioxBA_Must_Win_1_BIOX"><u><b>website</b></u></a><br><br>Sections:<br><div>0:00-1:09 &nbsp;Introduction to the video. The two types of p-values that are relevant for IPA and how they differ.</div><div>1:09-2:25 &nbsp;History of the Fisher’s Exact Test: the “Lady Tasting Tea” experiment.</div><div>2:25-5:50 &nbsp;Hypothesis testing for enrichment in IPA. The reference set, the null hypothesis used, and the overlap of molecules defined.</div><div>5:51-7:58 &nbsp;Why the right-tailed Fisher’s Exact Test is used in IPA.</div><div>7:58- 8:41 &nbsp;Explanation of sampling and expected proportions from the hypergeometric distribution.</div><div>8:41-9:34 &nbsp;Defining significance levels in the distribution. Why only the right-tailed, rather than two-tailed test, is considered in IPA.</div><div>9:35-11:04 &nbsp;The p-value defined and default significance level used in IPA.</div><div>11:04-11:12 &nbsp;How the p-value is calculated. &nbsp;How data is entered into the 2 x 2 contingency table and the formula used.</div><div>11:13-13:34 &nbsp;Example calculation and interpretation using the “Lady Tasting Tea” experimental data. Why the p-value of overlap calculations are Exact.</div><div>13:35-15:09 &nbsp;Transcriptomics example: Number of molecules tested and how they are categorized.</div><div>15:10-16:10 &nbsp;Transcriptomics example: data in 2 x2 contingency table, p-value calculation performed and interpreted.</div><div>16:11-18:07 &nbsp;Caveats for using and interpreting the p-value of overlap statistic in IPA.</div><div>18:08-18:36 &nbsp;Where to find more information about IPA and Customer Support information.</div></p><p><a href="http://tv.qiagenbioinformatics.com/photo/19605716/understanding-the-p-value-of"><img src="http://tv.qiagenbioinformatics.com/19476794/19605716/3f010f6e26d0f172f765bc2ed547ff43/standard/download-2-thumbnail.jpg" width="600" height="338"/></a></p> Fischer's Exact Test Fisher’s Exact Test hypergeometric distribution ingenuity pathway analysis IPA IPA Fisher’s Exact Test ipa tutorial p-value p-value of overlap p-value p-value of overlap reference set right-tailed Fisher’s Exact Test test