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a simple list of all the behaviours being recorded. Onevery occurrence of a behaviour on the list, a single tallyis recorded. At the end of the observation period, theobserver has a record of the number of occurrences of eachof the behaviours being investigated.

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Psychology term of the day

September 20th 2021

cross tolerance

this phenomenon arises in some drug categories, such as theopiates (heroin, morphine etc) and tryptamines (LSD,mescaline and psilocybin) when the prolonged use of one drugin the group results in the development of tolerance to theothers opioids.