Direct realism refers to the belief that sensory experience represents physical reality exactly as it is. Direct realism is also called Naive realism.

Direct reinforcement refers to a reinforcement that occurs as a direct consequence of a behavior, example, getting paid to work. (See Vicarious reinforcement.)

Direct replication is defined as the repetition of an experiment as identically as possible to the first performance which is done to determine whether the same results will be obtained

Direct scaling refers to a scaling technique in which the observer responds directly in psychological scale units

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Direct sound refers to the sound that is transmitted directly from a sound source to the ears.

Direct tuition means teaching young children how to behave by reinforcing "appropriate" behaviors/conduct and by punishing or otherwise discouraging "inappropriate" conduct/behaviors.

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Directed groping refers to the stage when the child begins to perform motor experiments in order to see what will happen.

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Directed verdict is defined as a verdict of acquittal pronounced by the judge when the evidence against the accused is so poor that acquittal is the only possible verdict.

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