Maya gives a speech she has practiced for weeks and performs more smoothly when classmates watch than when she practices alone. Which concept fits best?

During a tug-of-war, Eli pulls less hard because five teammates are also pulling and his individual effort is hard to identify. Which effect is this?

A skilled pianist plays a familiar piece faster and with fewer mistakes when an audience is in the room. Which group effect is most likely?

In a group project, several students let one organized teammate do most of the work because everyone will receive one shared grade. What is this called?

A sprinter runs faster in a race beside other runners than during timed solo workouts on the same track. Which concept explains the change?

Masked fans in a huge crowd vandalize seats after a game, behavior they say they would never do alone. Which process best explains this?

At a costume party, students who are normally quiet start chanting cruel comments because no one can tell who is saying what. What is this an example of?

A group of online users with anonymous screen names joins a harassment pile-on that most would avoid under their real names. Which concept fits?

During a blackout, people in a large crowd begin breaking store windows after seeing others do it, and no one feels individually responsible. Which process is shown?

A club already mildly favors stricter phone rules. After discussion, members support a much harsher ban. Which effect occurred?

A student council rushes to approve a plan because members value harmony and avoid raising doubts about obvious problems. Which concept fits best?

After reading similar posts, a chat group that began slightly worried about a rumor becomes convinced it is a major threat. What process is this?

A committee ignores outside evidence, assumes it cannot be wrong, and pressures one skeptical member to stay quiet before voting. Which term applies?

A jury initially leans toward a large damages award, then after discussion agrees on an even larger award than most jurors first supported. Which effect is this?

A leadership team keeps quiet about safety concerns because members think disagreement would make them look disloyal. Which decision problem is this?

A student drops her books in a crowded hallway, and many people look away because each assumes someone else will help. Which explanation fits?

A cyclist crashes near a packed bus stop, but no one calls for help until one person is directly asked to do it. Which effect is illustrated?

Several neighbors hear an alarm but each waits, thinking another neighbor has probably contacted emergency services. What concept explains their inaction?

In a cafeteria, a student starts choking while nearby tables stare at one another and hesitate. Which social psychology finding fits best?

A driver sees smoke from a car on an empty road and stops quickly, but in heavy traffic most drivers keep going. What factor changed?

In Darley and Latane's seizure study, participants were slowest to seek help when they believed how many other people heard the emergency?

Darley and Latane used emergency experiments to study which social psychology phenomenon?

What does diffusion of responsibility mean in the bystander effect?

In the smoke-filled room study by Darley and Latane, participants reported smoke fastest under which condition?

Which statement best summarizes Darley and Latane's major finding about emergencies?