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Psychology

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University of Richmond

1970

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The Effects Upon Short-Term Memory Of Acoustic Interference And The Cognitive Separation Of A Reduntant Element, Robert A. Smallwood Jun 1970

The Effects Upon Short-Term Memory Of Acoustic Interference And The Cognitive Separation Of A Reduntant Element, Robert A. Smallwood

Master's Theses

Sperling (1963) noted that some subjects (Ss) stated they could "hear" material being held in short-term storage, and he suggested that short_term memory (STM) for verbal materials may be in the form of an auditory loop. The first major laboratory investigations of this topic were made by Conrad (1962;1964) who examined the errors made in immediate recall, and found that substitution errors tend to involve units that sound alike (acoustically-similar), even when the original stimuli were visual. He concluded that visual letters are recorded into auditory representations, which may subsequently be confused with one author. The auditory, or at least …


The Effectiveness Of Teacher Attention As A Reinforcer In The Conditioning And Extinction Of Classroom Behaviors Of Delinquent Girls, Mary Fulcher Geis Apr 1970

The Effectiveness Of Teacher Attention As A Reinforcer In The Conditioning And Extinction Of Classroom Behaviors Of Delinquent Girls, Mary Fulcher Geis

Master's Theses

The present study was designed to assess the effectiveness of a combination of teacher approval for appropriate behavior and teacher ignoring of inappropriate behavior in modifying the classroom behavior of institutionalized juvenile delinquents.In a classroom at a residential facility for female juvenile offenders, baseline recordings of student and teacher behaviors were collected. After baseline, the teacher introduced three rules specifying appropriate student behavior. Next , in a multiple baseline procedure, the teacher approved of the students' appropriate interrupting and ignored their inappropriate interrupting; later, she also approved of the students not engaging in inappropriate talking and ignored their inappropriate talking.The …


The Role Of Interference And Trace Decay In The Retention Of A Simple Psychomotor Task, Stephen David Southall Jan 1970

The Role Of Interference And Trace Decay In The Retention Of A Simple Psychomotor Task, Stephen David Southall

Master's Theses

The purpose of the present study was to try to distinguish between the interference theory and trace decay theory and to try to establish whether one or a combination of the two best accounts for the forgetting shown in motor short-term memory (STM). The experiment was a seven by three factorial design with repeated measures on the second factor. The first factor was number of prior responses which the S experienced on the linear slide apparatus, and the number of responses ranged from zero through six. The second factor, length of the retention interval between practice and recall, had values …