Near the end of the Second World War, U.S. president Franklin Roosevelt commissioned Vannevar Bush, a leading scientist and engineer of the 20th century who directed U.S. government research during the War, to write a report on the future of postwar science and science policy in the United States. The report, Science—The Endless Frontier (Bush, 1945), made bold and sweeping recommendations that set the stage for the current model of federal funding of scientific research, government investment in training and supporting future scientists, and the founding the National Science Foundation. The report not only introduced the term “basic research” into common parlance, it also expanded the definition to refer to both addressing the demands for practical innovations and to promoting scientific curiosity (Pielke, 2010).

Bush (1945) asserted that scientific progress was essential to public welfare in the post-war world. Indeed, in the third chapter of the report, “Science for the Public Welfare” he asserted:

Basic research leads to new knowledge. It provides scientific capital. It creates the fund from which the practical applications of knowledge must be drawn. New products and new processes do not appear full-grown. They are founded on new principles and new conceptions, which in turn are painstakingly developed by research in the purest realms of science.

Bush regarded basic research that informed national defense, employment, developing new products, and science education as contributing to the public welfare. He advocated for a basic research model that simultaneously satisfied the quests for exploration and held implications for application. This view anticipated the societal demands on scientists to solve pressing problems now—and the future be damned. Solely application-oriented research will expend scientific capital but will not replenish the fund with intellectual interest. Applied research that does not advance theory or knowledge beyond its application in question may be a short-term gain for the practitioner or researcher, but a long-term loss for science and the public welfare.Footnote 1

The same dynamic plays out in behavior science and behavior analysis. It may be that the original applied and technological emphasis in Applied Behavior Analysis’s (ABA) founding document (Baer, Wolf, & Risley, 1968) was a stance adopted to differentiate ABA from the laboratory practices and fundamental science perspective of the experimental analysis of behavior (EAB; Cataldo, 2017). However, in the ensuing years, the applied and technological domain dominated, withdrawing hard-earned intellectual capital without much replenishment and placing cumbersome restrictions on research (Critchfield & Reed, 2017; Friman, 2017)—a process dubbed baerwolfrisleyising (Critchfield, 2015). In his ABAI presidential address, Marr (2017) echoed Bush’s (1945) concerns of a science depleted by application, observing that the effect has been exacerbated in the recent years because too few entering the field come in with adequate undergraduate preparation in mathematics and science. In Marr’s words “. . . they are often appallingly ignorant of other natural sciences and, especially mathematics” (p. 203). Yet, some do not see a problem here, positing that perhaps the principle of positive reinforcement discovered through decades of basic research is sufficient for application (Baer, 1981), or that ABA and EAB have speciated as a natural consequence of changing social values (Rider, 1991)—c’est la vie. Others do see a problem and propose various schemes for translational research reminiscent of Bush’s (1945) expanded definition of basic research (Critchfield, 2011; Kyonka & Subramaniam, 2018; Mace & Critchfield, 2010).

Unfortunately, translation takes time, and the twisted, steep, and thorny path from fundamental science to practical knowledge is revealed retrospectively. Only then does the “obvious” nonlinear development from research to application become clear. Imagine the response if Skinner and his early colleagues stepped out of their animal laboratories in the 1940s and told people that they were working on effective treatments for ASD, developmental delays, and psychological problems; methods to increase workplace performance and safety; procedures for improving education, better detection of land mines and tuberculosis, and solutions to problems of addiction. The reaction would be eyerolls and polite derision at best. A straight line from research to application is solely the province of second-rate children’s television shows. A typical plotline that goes something like “Hark—Yonder lies an important social problem! A miasma of ominousness hath descended upon our fair town. Let us repair to the laboratory to find a solution!” After much scurrying about, involvement of people with unstylish clothing and bad haircuts, acquisition of apparatus (it is not science without apparatus) and cut to a commercial break, a solution is found. The solution is introduced to a grateful populace with copious polysyllabic nonsense, a fusillade of scientific terms (real science must be inscrutable), and some foreign phrases for flair—all before suppertime.

If science does not deliver solutions, the culture will not support it. Vannevar Bush realized this and pointed to current, compelling, and concrete examples of important contributions that basic science made to public welfare to advance his arguments for government patronage of science and investment is training new scientists. In 1945, penicillin was a new lifesaving “miracle drug,” radar revolutionized warfare, and the atomic bomb ended the War.Footnote 2 These revolutionary solutions came from research in biological science, physical science, and nuclear science. Saving lives! Seeing across the horizon! Winning wars! Scientists solved problems. The path from lab to living room seemed much shorter then and the frontier probably did look endless. In 2019, the path may seem oblique, maybe nuanced, or a figment of collective wishful thinking, especially for behavior science.Footnote 3

But as a nascent science, behavior science is working at a disadvantage here. Behavior science did not have the luxury of the extended inductive exploratory period that physical sciences enjoyed for centuries that allowed physical sciences to advance way beyond the seemingly effortless and obvious. Imagine the state of physical science today if instead of engaging in careful experimentation and quantitation the early physical scientists were confronted by a society that said, “Your balls, inclined planes, prisms and magnets are all quite interesting—but can you explain that nuclear reactor on the hill over there and tell us what to do about it?” Physical science is complicated; it is easier for most people to see a translation from basic research in physical science to an application; after all, few people are amateur physicists or chemists but everyone is an amateur psychologist, and as such psychology, behavior science, and behavior analysis may be regarded as little more than common sense enrobed in an academic gown.

On the other hand, if an application does not advance science and theory, the application will become a stale commodity for sale to the lowest bidder. An application may be based on science, but it may not necessarily contribute to that science. Reflect on the diversity of electronic consumer goods available today that would be miraculous a generation or two ago, but are now readily available.Footnote 4 A phone that fits in your pocket and plays music on demand? A thin, crisp, clear TV the size of your front window? A speaker that requires no wires? An HVAC unit that adjusts itself based on who is in the house? Mobile phones, high-definition flat-screen televisions, Bluetooth speakers, “smart” thermostats are readily and cheaply available, and are jettisoned within 2–3 years. Indeed, many are built to be disposable and cannot be repaired. Marvels of science become landfill. Each of these devices solve a problem, but science moves on. Once a solution or application “works,” it is no longer scientifically interesting.

However, in behavior science as well as in medical science, a science-application feedback loop appears to be more necessary (Kyonka & Subramaniam, 2018). Perhaps it is because behavior science and medical science are not as highly developed as physical sciences and the solutions themselves are less robust, or perhaps it is because behavior science and medical science are tackling more difficult problems. This is especially the case when it comes to social problems. Social problems are often “wicked problems” (Mattaini, 2019; Rittel & Webber, 1973). A wicked problem is one that occurs in a social context with a diversity of stakeholders, have no given alternative solutions, and in which an attempted solution changes the understanding of the problem; solutions are anything but linear and are rarely “right” or “wrong” but are “better” or “worse.” When addressing a wicked problem, an iterative solution-science circuit is essential to first comprehend the problem, much less ameliorate it. Social problems are not rocket science. They are behavior science. They are more complex.

The Wicked Problem of Addictions

The heroic science of the mid-20th century solved many problems and saved countless lives. Yet the problem of addiction that bedeviled us in the 20th century and centuries preceding it (White, 1998) was left unsolved. Addictions are a paradigmatic example of a wicked problem: they are a problem with far-reaching social implications, a diverse array of stakeholders are involved, attempted solutions change understanding, and solutions seem to only make matters marginally better or worse.Footnote 5 Addictions also highlight the woeful inadequacy of the technological-to-a-fault brand of ABA and the position that the principle of positive reinforcement discovered through decades of basic research is sufficient for application (Baer, 1981). Yes, drugs are reinforcers for many species, not only humans (Kearns, 2019). But that alone does not explain addiction; the majority of substance users do not develop a substance abuse problem or addiction. Why do only 14% of alcohol drinkers, 24% of tobacco smokers, and 7.5% of users of controlled substances or inhalants develop dependence (Anthony, Warner, & Kessler, 1994)?Footnote 6 An answer may be important to know if we endeavor to devise successful treatment, and even more important, successful prevention. This is not to say that positive reinforcement has no role in understanding or treating addiction—but it is not the apex of application. However, on a more hopeful note, recent research in behavior science and behavior analysis may provide a promising path to innovative, lifesaving solutions.

Understanding and solving the wicked problem of addictions requires research at the neural, individual, organizational, community, and population levels along with research in intervention, dissemination, and prevention. To showcase this work in behavior science ABAI organized a conference on addictions in November, 2018. The papers from that conference are featured in a special section of this issue, which was edited and artfully arranged by Wendy Donlin-Washington and Mark Galizio. These articles have much to offer everyone from experts to anyone even marginally interested in behavior science and behavior analysis. For those who work in or study behavioral pharmacology or addictions, this collection is an authoritative volume of the field’s progress to date; indeed, it could be the backbone of a doctoral seminar. For other behavior scientists and behavior analysts, this special section strands as a testament to the power and scope of the science. From basic research in neural mechanisms and delay discounting to digital technology applications and large scale nationwide interventions, each article illustrates how basic research gave rise to effective application and how application loyal to the science informs further research and innovation. The path “from the lab bench to the park bench” is certainly not straight, but by all appearances it is taking us in the right direction. The outstanding work presented in this special section exemplifies “Behavior Science for the Public Welfare.”

Learning and Doing Better Science

This issue includes a second special section on methodology that addresses two critical issues in behavior science and behavior analysis: reproducibility and quantitative sophistication. The first issue of Perspectives on Behavior Science (PoBS) of 2019 was dedicated to replication and reliability in research. The articles in that issue covered topics from an overview of the “replication crisis” (Hales, Wesselmann, & Hilgard, 2019) to its implications for behavior science and analysis (Branch, 2019; Kaplan, Gilroy, Reed, Koffarnus, & Hursh, 2019; Kyonka, 2019; Lanovaz, Turgeon, Cardinal, & Wheatley, 2019; Laraway, Snycerski, Pradhan, & Huitema, 2019; Perone, 2019; Tincani & Travers, 2019). The articles in this special issue are not meant to be the final word on replication and reliability in research, but rather a call for a conversation (Hantula, 2019) as our scientific community works out its responses to the replication crisis and incorporates them into our culture.

Encouraging more open-science practices is one action that came from the replication conversation and is now implemented within ABAI. The term “open science” (Nosek et al., 2015) has come to refer to a set of practices that advance transparency in research. These practices include making data, analytic methods, code, and protocols available and citable, and preregistration of research. In June 2019, the ABAI Publication Council adopted the following open science policy for all ABAI journals (currently Behavior Analysis in Practice, Behavior and Social Issues, Perspectives on Behavior Science, The Analysis of Verbal Behavior, The Psychological Record):

Availability of Data, Protocols, Code, and Other Materials

To facilitate dissemination and replicability, authors of papers published in ABAI journals are strongly encouraged to make data, protocols, computer code, analytic tools and other research materials (e.g., IOA sheets, procedural fidelity checklists, photographs of materials, videos) available in a public archive with persistent identifiers such as DOIs and accession numbers. Current options include appending supplemental material to an article hosted by Springer, a university library, GitHub, Databrary, FigShare. As data and materials sharing become more common other options will become available.

All empirical and methodological articles published in ABAI journals will be required to include a statement on Availability of Data, Protocols, Code, and Other Materials. This statement should specify what data and materials are available and how they may be accessed. If data and materials cannot be made publicly available, a rationale must be provided.

The particular means used to share data, code, and protocols matters much less than continuously engaging in open-science practices. PoBS has implemented these practices over the past few years and the options chosen by authors of articles in PoBS illustrate many of the choices available. For example, Springer can archive online supplementary material such as code (Bullock, Fisher, & Hagopian, 2017) and video (Deochand, Costello, & Deochand, 2018); materials may be archived in a university library (Kaplan et al., 2016) or on a public platform such as GitHub (Kaplan et al., 2019). It is readily recognized that using these kinds of repositories is a novel behavior for many behavior scientists and behavior analysts. In response, and in continuation of the conversation, Gilroy and Kaplan introduce GitHub as well as a well-illustrated practical tutorial on its use in behavioral research.

A cursory reading of the “replication crisis” literature may lead to uncritically blaming “statistics” for the disaster—and by extension indicting all forms of quantitation. Unfortunately, such a position overstates and misrepresents the problem. Of course, misuse of null hypothesis significance testing (NHST) based statistics, misinterpretations of its results, and misunderstanding its pretzel logic (Branch, 2019; Killeen, 2019) contribute to the crisis, but a wholesale rejection of “statistics” and quantitation is equally ignorant. “Mathematics is the language of science” is an aphorism attributed to Galileo, Hume, and Kant. Indeed, many of the major advances in behavior science such as the matching law, delay discounting, and behavioral momentum came about through quantitative analyses. Leading behavior scientists continue to push the boundaries of quantitation, as exemplified by the March 2019 Special Issue of JEAB on “Modern Statistical Practices in the Experimental Analysis of Behavior” (Young, 2019b).Footnote 7 Of course, some of these analyses are difficult. Newland presents a tutorial on Information-Theoretic (I-T) Model Selection, an approach that ameliorates many of the problems of NHST and encourages examining multiple models. Weaver and Lloyd discuss use of randomization tests in analyzing data from SCRD studies. As they note, randomization tests may be especially well-suited to SCRD designs because these tests are flexible and do not rely on assumptions about normality and homoscedasticity. This article, along with other recent work (Killeen, 2019; Kyonka, 2019), also reinforces the idea that NHST based statistics are not anathema to behavior science and behavior analysis but can actually be helpful when used with discernment. Like many powerful things in this world, it is a question of proper use and misuse, not abolishment. Quantitation enables communication with other sciences; without communication, behavior science cannot contribute to the public welfare.

Implications of Behavior Science

The concluding two article in this issue explore social and scientific issues from a behavioral perspective. Rafacz analyzes healthy eating as choice behavior and reviews interventions for promoting selecting and consuming healthy foods. Of course, environmental modifications can change food choice (Sigurdsson, Larsen, & Gunnarsson, 2014; Sigurdsson, Menon, & Fagerstrøm, 2017) and nudge consumers towards more healthful choices. Behavior-based interventions may be particularly effective. A recent meta-analysis of healthy eating nudges in field settings found that effect size for what the authors termed “behaviorally oriented” nudges was over three times that of “cognitively oriented” nudges (Cadario & Chandon, 2019). This is another example of how behavior science contributes to the public welfare. Finally, we address a fundamental question. What is science? Normand argues that science is what scientists do. Science is behavior and much of this behavior is verbal. To understand science then, one must understand the language of science. The corpus of this language is found in scientific journals, reports, and books in the form of text, which may be words, figures, graphs, numbers, and equations. And returning to Galileo, Hume, and Kant, some of the discourse is in the extraordinary language known as mathematics. By implication here, innumeracy in science is as limiting and destructive as illiteracy in science. Normand turns behavior science on behavior science and asks how do we know what we know? We know it when we say it. Something that we know and say about science is that it is a self-correcting process. Interrogations of science by scientists, especially behavior scientists, are among the most effective means for remedying past errors, preventing future imperfections, and advancing science for the public welfare.