A researcher administers a drug that selectively blocks voltage-gated calcium channels at the presynaptic axon terminal. An action potential still reaches the terminal normally. Which effect on synaptic transmission is most likely?

From an evolutionary perspective it would be most difficult to explain why

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 in _______.

In John Darley’s and Bibb Latané’s (1968) classic “seizure” experiment, participants were more likely to help the (alleged) seizure victim (and to help more quickly) when they believed that:

Which of the following individuals is LEAST likely to be helpful based on their personality traits?

According to the text, people in a hurry may be less willing to help because they

Latané and Darley attempted to explain people’s failure to intervene in cases like that of Kitty Genovese in terms of

Aronson’s jigsaw technique involved having elementary school children

In an enactment of the Good Samaritan situation, Darley and Batson (1973) studied the helpfulness of Princeton seminarians in order to assess whether helping behavior was influenced by

In both the Prisoner’s Dilemma and the Tragedy of the Commons, people tend to explain their behaviors _____ and their opponent’s behavior _____.