Which of the following is true regarding research by gibson and walk (1960) using the visual cliff? a) all of the babies in the study crossed the visual cliff when encouraged by their moms. b) gibson and walk demonstrated that babies are born with depth perception. c) infants are not capable of perceiving depth until they reach about 12 months of age. d) gibson and walk demonstrated that most babies displayed depth perception by they time they could crawl.

.d) Gibson and Walk demonstrated that most babies displayed depth perception by they time they could crawl.

Explanation:

The study by Gibson and Walk titled The Visual Cliff concluded that most children can discriminate depth as soon as they can crawl and display depth perception. Even though their mums called across from the other side of the cliff, of the 36 infants used in the study, only 3 walked across the cliff to meet their mum.

the historians cited in the article all agree with one another about the cause of the civil war. despite coming from different backgrounds and cultures, the historians agree that slavery was the root cause of the civil war. the fact that all these historiansgenerally agree with one another makes their shared viewpoints more reliable and valid, especially because the historians have different backgrounds and all work for the well-respected institutions of howard university, clemson university, and the university of colorado.

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