Latané and Darley (1968) had university students complete questionnaires in a small room, and then had smoke pour into the room from a wall vent. Students who were working tended to notice the smoke .

Alone ; less than 5 seconds

Explanation: Latane and Darley (1968) conducted series of experiments with regards to the bystander effect which aims to show the responsivensess of individuals to emergency situation depending on the number of people within that vicinity. This is usually called the bystander effect. In one of their experiments, Latane and Darley engaged college students to fill a questionnaire, some participants were required to fill the questionnaire alone in a room while some were placed in rooms with multiple people, a smoke ensued which became Thicker with time, It was observed that students who were alone notice d the smoke qiluickly in less than 5 seconds and about 75% of them rushed out to seek help while only about those in rooms with multiple people seemed to ignore the smoke with only about 10% leaving the room at a time later than when those who were alone already rushed out.

gold discovery in california, and pioneer settlers were sometimes pulled west because they wanted to make a better living. others received letters from friends or family members who had moved west. these letters often told about a good life on the frontier. the biggest factor that pulled pioneers west was the opportunity to buy land.

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