LORENZ AND HARLOW RESERACH AND EVALUATION

The naturally hatched baby goslings followed their mother, the incubator hatched ones followed Lorenz.

Imprinting would occur within the first few hours after birth and was permanent

Goslings that imprinted onto humans, would attempt to mate with humans as adult birds

Lorenz (1935)

Chickens that imprinted on yellow washing up gloves would try to mate with them as adults

Guitan et al (1966)

Lorenz evaluation

Researcher bias- low internal validity, lacks generalisability- low population validity

Baby monkeys cuddled the cloth mother in preference to the wire one and sought comfort from the cloth mother when frightened regardless of which dispensed milk

Monkeys fed by wire mother were most dysfunctional, but both had antisocial behaviour growing up

Harlow (1958)