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An uncharged metal sphere is placed on an insulating puck on a frictionless table. While being held parallel to the table, a rod with a charge q is brought close to the sphere, but does not touch it. As the rod is brought in, the sphere
Within-Subjects Research Design
Research design in which each participant appears in all levels or categories of the independent variable.
T-test for Dependent Means
A statistical analysis used to compare the means from the same group at two different times or under two different conditions to understand if there is a significant difference.
T-test for Dependent Means
A statistical method used to compare the means of two related groups to determine if there is a significant difference between them.
Before and After Treatment
A research design comparing outcomes before and after a treatment or intervention to assess its effectiveness.
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