At a detention hearing, a judge decides whether a juvenile

should remain in custody.

Explanation:

The Detention hearing is conducted before the court decided whether the criminal offender is dangerous enough to stay free before their actual proceeding in court.

The decisions in detention hearing is determine by several factors such as:

- The severity of the crime

Dangerous Offenders such as perpetrators of assaults, arsons, or murder tend to be detained. While light offenders such as vandalism or bar fighting tend be allowed to get home with bail.

- The repetition

Repeating offenders tend to be more likely to be detained even if they're only involved in low-level crimes.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.