Implementing ODA from Within Stata: Confirmatory and Exploratory Inter-Rater Reliability Hypothesis with a Three-Category Ordinal Rating

Paul R. Yarnold, Ph.D. and Ariel Linden, Dr. P.H. Optimal Data Analysis, LLC & Linden Consulting Group, LLC This paper illustrates testing directional (confirmatory) and non-directional (exploratory) hypotheses for an inter-rater reliability study using a three-category ordinal measure, via the Stata package for implementing ODA. View journal article

ODA Model Perfectly Predicts S&P 500 Declines of 20% or Greater

Paul R. Yarnold. Ph.D. Optimal Data Analysis, LLC The Shiller price-to-earnings (P/E) ratio assesses mean inflation-adjusted earnings in the prior decade.1 Five times over the past 150 years this index consistently exceeded 30 during a bull market run. Two times were during the Great Depression and the “dot-com” bubble, and both resulted in record declines … Continue reading ODA Model Perfectly Predicts S&P 500 Declines of 20% or Greater

Implementing ODA from Within Stata: Exploratory Hypothesis, Three-Category Class Variable, Continuous Attribute

Paul R. Yarnold, Ph.D. and Ariel Linden, Dr. P.H. Optimal Data Analysis, LLC & Linden Consulting Group, LLC This paper describes how to test a non-directional (exploratory) hypothesis for a design relating a three-category class (“dependent”) variable and a continuous attribute vis-à-vis the Stata package for implementing ODA. View journal article

FORUM: Predicting Sea-Level Rise

An accumulation of current research hypothesizes that if global warming continues at the current pace then sea-level rise will probably surpass the most extreme projections. Consideration of two incontrovertible observations magnifies the veracity of this proclamation. First, the assumption that the increase in future global warming will continue at the current pace is invalid. Warming … Continue reading FORUM: Predicting Sea-Level Rise

FORUM: Exercise on Deck

Half a century of learning and practicing transformed me into an excellent big-game fisherman. Well-trained and equipped, and highly-experienced, my hand and foot reflexes were fast, my technique was classic, and I was strong and flexible. I had good endurance, hiking seven miles daily in Point Loma—locally called “Tunaville.” In the mornings when the overnight … Continue reading FORUM: Exercise on Deck

FORUM: Preventing Seasickness

As a young teenager in the early 1970s I sailed on three different half-day fishing trips departing from Art’s Landing in Newport Beach, California. I sought Pacific bonito—a staple component of my family’s diet: fresh we loved it grilled, otherwise it was delicious smoked. Affectionately nicknamed Boneheads—perhaps in tribute to their appreciation of bait, bonito … Continue reading FORUM: Preventing Seasickness

FORUM: Making Your Facemask Fit Perfectly

People who’ve operated a vehicle powered by an internal combustion engine are probably at least somewhat familiar with an air filter, if for no other reason than it is periodically replaced in standard maintenance. Air filters are also essential components in heating and cooling, electronic, and mass transportation systems, to name a few. Clean particle-free … Continue reading FORUM: Making Your Facemask Fit Perfectly

FORUM: Alternative Therapies

The choices I made in my initial 30 years of life exposed my right shoulder to chronic over-use and sporadic injury trauma resulting from my participation in sports (archery, baseball, tennis, bowling, volleyball, golf, mountain biking); job activities (restocking shelves, pressure-cooking chicken, moving to a new residence); sustenance fishing (pier, jetty, boat); and accidents (rafting, … Continue reading FORUM: Alternative Therapies