A Researcher Investigating 'Pygmalion in the Classroom' Measured Teachers' Perceptions

question 1

Multiple Choice

A researcher investigating 'Pygmalion in the classroom' measured teachers' perceptions of male and female students' mathematical abilities.She collected teacher ratings of 97 male and female students.Based on the output,what can you say about the data?

• A)The variances of ratings were significantly different for males and females.
• B)Homogeneity of variance can be assumed.
• C)Mean perceptions of male and female students were significantly different.
• D)Mean and median ratings were similar for males and females

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Definitions:

Reciprocating Motion

A type of mechanical motion where an object moves back and forth along a straight path, common in pistons and pumps.

Linear Motion

Motion in a straight line and in one direction, characterized by a constant velocity unless acted upon by external forces.

Pitch Diameter

A critical dimension in thread measurement; it's the diameter of the imaginary cylinder where the thread depth equals half the pitch.

Pitch Diameter

The effective diameter of a screw thread, roughly midway between the major and minor diameters.