The nuts and bolts of our public opinion surveys. A summary of ABC News' polling standards and survey methodology follows. ABC News maintains standards for disclosure, validity, reliability and ...

How ANOVA helps ensure process data lead to accurate, defensible decisions. The two-sample t-test determines if two population means are equal. Typical applications involve testing whether a new ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

The authors used a Bayesian modeling framework to fit behavior and serotonin neuron activity to reward history across multiple timescales. A key goal was to distinguish value coding from other ...

The key is consistent practice, and one of the best ways to prepare is by taking practice CGRC certification exams like this one. Use these questions to structure your study. Pay close attention to ...

The 13th Statistical Forum, themed “<em>Measuring Cross-border Economic and Financial Linkages in a Dynamic World</em>,” will be held on November 19–20, 2025 ...

Find out how GDP can help measure the health of a country’s economy Michael Boyle is an experienced financial professional with more than 10 years working with financial planning, derivatives, ...

Decision-making inherently involves cause–effect relationships that introduce causal challenges. We argue that reliable algorithms for decision-making need to build upon causal reasoning. Addressing ...

Background Some countries are exploring policies that might help lower cigarette smoking prevalence to below 5% by 2030. This ...

When you stop working is up to you, but whether you can afford the retirement lifestyle you want all comes down to how much you've managed to save. In a 2025 survey carried out by Which?, 49% of ...