The Third Force

Humanistic psychology expressly understood itself as a third force alongside psychoanalysis and behaviourism, and the objection it raised against both was the same: their picture of the human being was derived from the sick and from rats and therefore turned out systematically too dark. Maslow put that as a programme, Rogers as a method, Frankl as an anthropological position.

What they placed at the centre instead — growth, meaning, the capacity for one’s own development — was harder to measure than salivation or reaction time. That is exactly why this Ordner collects such different replication records. Where the approaches made testable claims, they have been tested, and the results come out divided.

Rogers is the case that most surprises the reception. He counts as the counter-figure to measuring psychology and was among the first to have therapy sessions recorded so that they could be checked. His 1957 claim — that three attitudes on the therapist’s part are necessary and sufficient for change — was falsifiable, and it is half refuted: the therapeutic relationship does predict success, across all methods, but for a range of disorders specific methods are more effective than a sound relationship alone.

Maslow is the case in which the list holds and the order does not. In 2011 Tay and Diener found the needs he had described in data from 60,865 people across 123 countries — but not the sequence in which they were supposed to be met. People report sustaining relationships while material security is absent. The pyramid everyone knows him for does not come from him anyway, but from the management literature of the 1960s.

Frankl is the case in which the question of testability does not arise. Man’s Search for Meaning is a testimony, not an investigation: no sample, no control condition, no statement of the observation under which the thesis would be false. What became testable is not logotherapy but the construct it presupposes — experienced meaning has been measurable with an established instrument since 2006 and is reliably related, in large samples, to well-being and to coping with illness.

The common denominator is a methodological lesson, not a philosophical one. Where this school stated a claim so that it could fail, something of it has survived — the relationship in Rogers, the needs in Maslow, experienced meaning in Frankl. Where it did not, the statement itself is what remains.