A Study Was Designed to Investigate the Effects of Two

question 59

Multiple Choice

A study was designed to investigate the effects of two variables - (1) a student's level of mathematical anxiety and (2) teaching method - on a student's achievement in a mathematics course. Students who had a low level of mathematical anxiety were taught using the traditional expository method. These students obtained a mean score of 370 with a standard deviation of 20 on a standardized test. Assuming no information concerning the shape of the distribution is known, what percentage of the students scored between 330 and 410?

• A) at least 75%
• B) approximately 95%
• C) at least 89%
• D) approximately 68%

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Definitions:

The Superego

A component of Freud's psychoanalytic theory, the superego represents the internalization of societal and parental standards of conduct, functioning to suppress urges of the id and to strive for perfection.

Schema

A schema is a cognitive framework or concept that helps organize and interpret information in the world, guiding our expectations and understanding of experiences.

Human Mortality

The condition of being susceptible to death; the statistical study of human deaths in a population.

Lateralization

Literally, “sidedness,” referring to the specialization in certain functions by each side of the brain, with one side dominant for each activity. The left side of the brain controls the right side of the body, and vice versa.