Where the claims come from.

The strongest challenge — integrity test validity is substantially lower under stricter criteria

Van Iddekinge, C. H., Roth, P. L., Raymark, P. H., & Odle-Dusseau, H. N. · 2012 · meta analysis

A meta-analysis applying stricter inclusion criteria to the same literature found integrity tests predicted job performance far more weakly than previously reported — around ρ = .15 in applicant samples and ρ = .20 in incumbent samples.

Trust in a leader predicts how people perform, stay and behave

Dirks, K. T., & Ferrin, D. L. · 2002 · meta analysis

Meta-analytic evidence that trust in leadership is meaningfully related to job performance, citizenship behavior, satisfaction, commitment and intention to quit — and that it functions as a construct in its own right rather than a by-product of the leader-member relationship.

Trust between teammates predicts team performance — and matters most where people depend on each other

De Jong, B. A., Dirks, K. T., & Gillespie, N. · 2016 · meta analysis

Across 112 studies covering 7,763 teams, trust between team members related to team performance at ρ = .30 — a relationship that survived controlling for trust in the leader and for past team performance, and that was strongest where members' tasks were highly interdependent.

What breaking an agreement costs, measured across the literature

Zhao, H., Wayne, S. J., Glibkowski, B. C., & Bravo, J. · 2007 · meta analysis

Meta-analytic evidence that a perceived broken promise at work is related to mistrust of management, felt violation, lower job satisfaction, lower organizational commitment and higher intention to leave — with weaker relationships to citizenship behavior and in-role performance, and none to actual turnover.

Staying because you feel you ought to is its own kind of commitment

Meyer, J. P., Stanley, D. J., Herscovitch, L., & Topolnytsky, L. · 2002 · meta analysis

A meta-analysis of 155 studies finding that commitment arising from felt obligation (normative) is distinguishable from commitment arising from attachment (affective) and from cost of leaving (continuance), and that all three relate negatively to turnover — evidence that obligation-based commitment is a real and separable thing.

Fairness is four things, not one

Colquitt, J. A., Conlon, D. E., Wesson, M. J., Porter, C. O. L. H., & Ng, K. Y. · 2001 · meta analysis

A meta-analysis of 183 studies establishing that workplace fairness is not one judgment but four distinguishable ones — distributive, procedural, interpersonal and informational — each with its own relationships to outcomes.

Fairness works on performance by running through trust

Colquitt, J. A., Scott, B. A., Rodell, J. B., Long, D. M., Zapata, C. P., Conlon, D. E., & Wesson, M. J. · 2013 · meta analysis

A meta-analysis of 493 independent samples finding that the relationships between justice and both task performance and citizenship behavior are mediated — justice does not act on performance directly, it acts through social-exchange indicators such as trust.

A fair process matters most exactly when the outcome is bad

Brockner, J., & Wiesenfeld, B. M. · 1996 · meta analysis

Across 45 independent samples, procedural fairness and outcome fairness interact: procedural fairness matters most to people's reactions when the outcome is unfavorable, and outcome fairness matters most when the process was poor.

What actually makes forgiveness possible

Fehr, R., Gelfand, M. J., & Nag, M. · 2010 · meta analysis

A meta-analysis of 175 studies and 26,006 participants finding that forgiveness depends more on the situation than on the forgiver's disposition — with apology, perceived intent, empathy and anger among the strongest correlates.

The field's own verdict on visionary-leadership research

van Knippenberg, D., & Sitkin, S. B. · 2013 · study

A major critical review arguing that charismatic-transformational leadership research is built on an undefined construct, confounds the leadership with its own effects, and uses measures that fail to reproduce the theorized structure — concluding the field should abandon the label entirely.

Specific and hard beats "do your best"

Locke, E. A., & Latham, G. P. · 2002 · study

A 35-year summary of goal-setting research reporting that specific, difficult goals consistently produce higher performance than urging people to do their best, with meta-analytic effect sizes ranging from .42 to .80.

A hard goal only works on someone who accepted it

Klein, H. J., Wesson, M. J., Hollenbeck, J. R., & Alge, B. J. · 1999 · meta analysis

A meta-analysis of 83 independent samples establishing goal commitment as the construct that conditions the whole goal-setting effect — a difficult goal raises performance only to the degree the person is committed to it.

Commitment has a failure mode, and it is a character failure

Sleesman, D. J., Conlon, D. E., McNamara, G., & Miles, J. E. · 2012 · meta analysis

A meta-analytic review of 35 years of escalation research finding support for 14 of 16 predicted determinants of persisting with a failing course of action — with sunk costs, personal responsibility for the original decision, and ego or reputational threat among the strongest.

The most popular version of this trait does not survive testing

Credé, M., Tynan, M. C., & Harms, P. D. · 2017 · meta analysis

A meta-analysis of 584 effect sizes from 88 samples and 66,807 individuals finding that grit's proposed structure is not confirmed, that grit correlates very strongly with conscientiousness, that it relates only moderately to performance and retention, and that interventions to build it are likely to have weak effects.

The famous marshmallow finding shrank when it was retested

Watts, T. W., Duncan, G. J., & Quan, H. · 2018 · study

A larger conceptual replication of the marshmallow test finding that early delay of gratification still predicted adolescent achievement, but at roughly half the original correlation — and that the association shrank by about two thirds once family background, early cognitive ability and home environment were controlled.

Serving your people survives the test that sank its neighbors

Hoch, J. E., Bommer, W. H., Dulebohn, J. H., & Wu, D. · 2018 · meta analysis

A meta-analysis testing whether ethical, authentic and servant leadership explain anything beyond transformational leadership, finding that authentic and ethical leadership add very little - and that servant leadership does, standing on its own as a distinct approach.

Helping shows up in unit performance, and the timing suggests it causes it

Podsakoff, N. P., Whiting, S. W., Podsakoff, P. M., & Blume, B. D. · 2009 · meta analysis

A meta-analysis of 168 samples and 51,235 individuals finding that discretionary helping behavior relates to individual outcomes such as performance ratings and reward decisions, and to unit-level performance - with the relationship stronger in longitudinal than cross-sectional studies.

Rudeness does not just upset people - it degrades their thinking

Porath, C. L., & Erez, A. · 2007 · study

Three experiments finding that rudeness reduced performance on both routine and creative tasks and reduced helpfulness - with the effect mediated by disruption to cognitive processes rather than by mood, and holding whether the rudeness came from an authority figure, a third party, or was merely imagined.

Whether people will speak is a property of the group, and it is measurable

Frazier, M. L., Fainshmidt, S., Klinger, R. L., Pezeshkan, A., & Vracheva, V. · 2017 · meta analysis

A meta-analysis of 136 independent samples covering over 22,000 individuals and roughly 5,000 groups, establishing psychological safety as a measurable group property with identifiable antecedents - leadership and work design chief among them - and relationships to learning, performance and engagement.

What the absence of this trait costs, measured

Mackey, J. D., Frieder, R. E., Brees, J. R., & Martinko, M. J. · 2017 · meta analysis

A meta-analysis of abusive supervision reporting moderate associations with lower job satisfaction and commitment, higher emotional exhaustion and intent to leave, fewer citizenship behaviors, and strong associations with counterproductive work behavior and deviance.

The happy-worker claim, at its actual size

Judge, T. A., Thoresen, C. J., Bono, J. E., & Patton, G. K. · 2001 · meta analysis

A meta-analysis of 312 samples and 54,417 people estimating the job satisfaction-job performance relationship at about rho = .30 - real and moderate, and far smaller than the popular version of the claim.

The most famous number in positive psychology was not real

Brown, N. J. L., Sokal, A. D., & Friedman, H. L. · 2013 · study

A critique demonstrating that the widely cited "critical positivity ratio" of 2.9013 - the claim that flourishing requires about three positive emotions per negative one - rests on a misapplication of fluid dynamics to human emotion and has no theoretical or empirical justification.

The kind of speaking up that matters most is the kind that costs you

Chamberlin, M., Newton, D. W., & LePine, J. A. · 2017 · meta analysis

A meta-analysis distinguishing promotive voice - suggesting improvements - from prohibitive voice - pointing out problems and wrongdoing - and finding that promotive voice is positively associated with job performance while prohibitive voice is negatively associated with it.

Three different ways of being sure you are right

Moore, D. A., & Healy, P. J. · 2008 · study

A theoretical and empirical paper separating overconfidence into three distinct phenomena - overestimation of your own performance, overplacement relative to others, and overprecision in your beliefs - and finding that overprecision, excessive faith that you know the truth, is the most persistent.

What gets you the job is not what makes you good at it

Grijalva, E., Harms, P. D., Newman, D. A., Gaddis, B. H., & Fraley, R. C. · 2015 · meta analysis

A meta-analysis finding that narcissism has a positive relationship with leadership *emergence* - who gets chosen to lead - but no linear relationship with leadership *effectiveness*, and that the apparent null conceals a curvilinear relationship in which moderate levels do best.

Traits do change, and roughly on the timescale of this program

Roberts, B. W., Luo, J., Briley, D. A., Chow, P. I., Su, R., & Hill, P. L. · 2017 · meta analysis

A systematic review of 207 studies finding that personality trait measures changed measurably through intervention - around d = .37 over an average of 24 weeks - with the changes replicating across experimental and non-experimental designs, holding for non-clinical interventions, and persisting in longitudinal follow-up.

If-then plans, and why every practice should be written as one

Gollwitzer, P. M., & Sheeran, P. · 2006 · meta analysis

A meta-analysis of 94 independent tests finding a medium-to-large effect (d = .65) of implementation intentions - specific if-then plans - on goal attainment, operating by initiating action, shielding it from interference, enabling disengagement from failing courses, and conserving capacity.

A third of feedback interventions make performance worse

Kluger, A. N., & DeNisi, A. · 1996 · meta analysis

A meta-analysis of 607 effect sizes from 23,663 observations finding that feedback interventions improved performance on average (d = .41) but that over a third of them made performance worse - and that effectiveness falls as feedback moves attention away from the task and toward the self.

Confidence in Congress and the military, 1973 to 2026

Gallup · 2026 · dataset

Gallup's annual confidence-in-institutions trend, read directly from the published series for all seventeen institutions. Every figure the first edition cites for 2014 is correct. The military has since fallen thirteen points and is no longer the highest-rated institution.

Integrity tests predict job performance and counterproductive behavior (the landmark, now contested)

Ones, D. S., Viswesvaran, C., & Schmidt, F. L. · 1993 · meta analysis

Large-scale meta-analytic evidence that measures of integrity predict both supervisor-rated job performance and counterproductive behavior at work — though the size of that prediction is disputed (see EV-0002).

When managers' words match their deeds, profitability follows

Simons, T., McLean Parks, J., & Tomlinson, E. C. · 2018 · study

Across 76 hotels and roughly 6,800 employees, the degree to which staff saw their managers' words match their deeds was associated with lower voluntary turnover, higher guest satisfaction, and materially higher unit profitability — with behavioral integrity accounting for about 13% of the variance in profitability between hotels.

Behavioral integrity — the academic construct behind "words matching deeds"

Simons, T. · 2002 · study

There is an established organizational-behavior construct — behavioral integrity, the perceived alignment between a manager's words and deeds — which gives an academic vocabulary for exactly what the book calls the Honesty/Integrity dyad.

Trustworthiness has three parts, and integrity is one of them

Mayer, R. C., Davis, J. H., & Schoorman, F. D. · 1995 · study

The dominant model of organizational trust separates the act of trusting from the qualities that warrant it, and decomposes trustworthiness into three perceived components — ability, benevolence and integrity.

Too much trust has costs — the case against simply trusting more

Molina-Morales, F. X., Martínez-Fernández, M. T., & Torlò, V. J. · 2011 · study

Trust and performance are not monotonic: beyond a point, further trust brings costs rather than benefits, as firms over-invest in relationships, drop safeguards and take on risk they would not otherwise accept.

The academic name for a promise you chose to make

Rousseau, D. M. · 1989 · study

There is an established organizational-behavior construct — the psychological contract — defined as an individual's belief in reciprocal obligations arising from promises voluntarily made and accepted, which is very close to the CDL definition of faithfulness as a commitment freely entered into.

The honest audit of that literature, including its weaknesses

Topa, G., Aranda-Carmena, M., & De-Maria, B. · 2022 · meta analysis

A review of eight reviews and meta-analyses, which reproduces the pattern — attitudinal effects moderate to strong, behavioral effects weak — and simultaneously judges the whole literature's conclusions "tentative" on methodological grounds.

Dependability and drive are measurably different things

Dudley, N. M., Orvis, K. A., Lebiecki, J. E., & Cortina, J. M. · 2006 · meta analysis

Meta-analytic evidence that the narrow facets of conscientiousness — achievement, order, prudence and dependability — predict performance over and above global conscientiousness, which supports separating fidelity to an agreement (Faithfulness) from drive toward a goal (Discipline) rather than merging them.

Mercy is judged by the motive people read into it

Zipay, K. P., & Mitchell, M. S. (with colleagues) · 2025 · study

A three-study mixed-methods investigation finding that co-workers who observe a supervisor being lenient toward someone's misconduct judge that leniency by the motive they attribute to it — altruistic motives such as empathy or calibrated punishment are evaluated favorably, instrumental ones such as image maintenance or avoiding the harder path are not.

The landmark case that visionary leadership works

Judge, T. A., & Piccolo, R. F. · 2004 · meta analysis

A meta-analysis of 626 correlations from 87 sources reporting an overall validity of .44 for transformational leadership — the standard citation for "visionary leadership works" — while also reporting that it correlates .80 with contingent-reward leadership and is outperformed by it on several criteria.

The experiment that separates vision from the way it is delivered

Kirkpatrick, S. A., & Locke, E. A. · 1996 · study

A controlled experiment that manipulated vision, vision implementation and charismatic communication style independently, finding that implementation drove performance, vision alone mainly moved attitudes, and charismatic delivery affected only whether the leader was perceived as charismatic.

Telling people the real cost up front makes them stay

Phillips, J. M. · 1998 · meta analysis

A meta-analysis of 40 studies finding that realistic job previews — telling candidates the unflattering truth about a role before they accept it — are related to lower voluntary turnover and higher performance, at the cost of small decreases in job satisfaction.

Self-control works on habits, not on moments of temptation

de Ridder, D. T. D., Lensvelt-Mulders, G., Finkenauer, C., Stok, F. M., & Baumeister, R. F. · 2012 · meta analysis

A meta-analysis of 102 studies and 32,648 participants finding a small-to-medium positive effect of trait self-control on behavior — and, unexpectedly, a stronger relationship with automatic behavior than with deliberately controlled behavior.

The person doing the helping pays for it

Bolino, M. C., & Turnley, W. H. · 2005 · study

A study of 98 couples finding that higher individual initiative - coming in early, staying late, taking on extra projects - is associated with higher role overload, job stress and work-family conflict, with the work-family relationship stronger for women than men.

A leader's mood transfers to the group, with mixed effects

Sy, T., Cote, S., & Saavedra, R. · 2005 · study

An experiment finding that a leader's induced mood transferred to individual group members and to the group's affective tone - and that groups with positive-mood leaders coordinated more but expended less effort than groups with negative-mood leaders.

People intend to speak up far more than they do

Mesmer-Magnus, J. R., & Viswesvaran, C. · 2005 · meta analysis

A meta-analysis of 193 correlations from 26 samples and 18,781 people finding that personal, contextual and wrongdoing characteristics relate more strongly to whistleblowing *intent* than to actual whistleblowing - and that retaliation is best predicted by contextual variables.

The best evidence in this library that training changes behavior

Morewedge, C. K., Yoon, H., Scopelliti, I., Symborski, C. W., Korris, J. H., & Kassam, K. S. · 2015 · study

Two longitudinal experiments finding that a single training intervention - a video or an interactive game - produced large reductions in several cognitive biases, with effects still present two months later, and a later field study reporting the effects transfer outside the laboratory.

The 360's own premise, honestly reported

Atwater, L. E., & Yammarino, F. J. (and the self-other agreement literature following them) · 1997 · study

A body of work categorising leaders by the gap between their self-ratings and others' ratings - over-estimators, under-estimators, and those in agreement - and generally finding over-estimators rated least effective, though the finding is sensitive to how the categories are drawn.

What separates executives who make it from those who blow up

Leslie, J. B., & Van Velsor, E. (building on McCall, M. W., & Lombardo, M. M., 1983) · 1996 · study

Three decades of interview-based research finding that executives who derail and executives who succeed are largely indistinguishable on the things organizations select for - intelligence, track record, ambition - and that the enduring difference is dominated by problems with interpersonal relationships, the theme the authors say "more than any other, reveals the negative aspects of character."

Wanting to change is not nothing - but only one method worked

Hudson, N. W., & Fraley, R. C. · 2015 · study

Two 16-week randomized longitudinal experiments finding that people who wanted to increase on a trait did measurably increase on it - in self-reports and in trait-relevant daily behavior - and that of two interventions tested, only the one training implementation intentions actually helped.

How long it takes, and what a missed day costs

Lally, P., van Jaarsveld, C. H. M., Potts, H. W. W., & Wardle, J. · 2010 · study

A 12-week study of habit formation in daily life finding that automaticity builds along an asymptotic curve, that time to near-automaticity ranged from 18 to 254 days across individuals, and - the finding that matters most here - that missing one opportunity to perform the behavior did not materially affect the process.

Two thirds of employees are not engaged, and the manager is the variable

Gallup · 2026 · industry report

As of May 2026, 31% of US employees are engaged at work and 17% are actively disengaged. Gallup separately reports that managers account for at least 70% of the variance in team-level engagement.

Most people say a promise made to them at work was broken

Robinson, S. L., & Rousseau, D. M. · 1994 · study

In an early and much-cited survey, roughly 55% of respondents reported that their employer had failed to keep a promise made to them — the finding behind the paper's title, "not the exception but the norm."