Mary's parents want her to put her books in her bookcase. at first, they praise her for putting the books together in one pile. then they praise her for getting the books on the same side of the room as the bookcase. when she gets the books on top of the bookcase, she gets praise. finally, her parents praise her when she puts her books in the bookcase. this is an example of

Finally, her parents praise her when she puts her books in the bookcase. This is an example of "shaping".

The way toward building up a conduct that isn't found out or performed by a person at exhibit is alluded to as Shaping. Shaping can likewise be characterized as the technique that includes fortifying practices that are nearer to the objective conduct, otherwise called progressive approximations. The idea was first created and utilized by B.F Skinner, who is known for his hypotheses that include learning practices through reinforcement.

Finally, her parents praise her when she puts her books in the bookcase. This is an example of "shaping".

Explanation:

it is due to the halo effect as the impression of the boy created earlier.on the mind of the principle affected his decision