A Study Was Designed to Investigate the Effects of Two

question 51

Essay

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 380 and a standard deviation of 50 on a standardized test. Find and interpret the z-score of a student who scored 450 on the standardized test.

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Definitions:

General Intelligence

The theory that a single, general intelligence factor underlies all cognitive abilities, allowing individuals to perform a wide range of cognitive tasks.

Correct Answer

An accurate response or solution to a particular question or problem.

Mental Retardation

An outdated and insensitive term formerly used to describe individuals with below-average intellectual functioning and significant limitations in adaptive behaviors; now more commonly referred to as intellectual disability.

Giftedness

The possession of natural talents or abilities at levels significantly higher than average.