Dr. Johan tends to believe in the ________ model of development, which says that development results from gradual, incremental changes. Dr. Ziback tends to believe in the ________ model, which says that development results from discrete, qualitative changes.

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Answer:

Step-by-step explanation:

Dr. Johan tends to believe in the continuity model of development, which says that development results from gradual, incremental changes. Dr. Ziback tends to believe in the stage model, which says that development results from discrete, qualitative changes.