EDUC206 THURSDAY MANIA

Which of the following statements best describes a positively skewed score distribution?

• The mean and median are equal

• Most of the scores of the students are high

• The mode is high

• Most of the scores of the students are low

Most of the students who took the examination got scores above the mean. What is the graphical representation of their scores?

• Normal Curve

• Positively skewed

• Mesokurtic

• Negatively skewed

Which of the following best describes the distribution if a class is composed of bright students?

• Negatively skewed

• Positively skewed

• Skewed to the right

• Normally distributed

What does a negatively skewed distribution mean?

• The scores are concentrated on the left side of the curve

• The scores are widespread

• The students must be academically poor

• The scores are concentrated on the right side of the curve

In a normal distribution, about how many percent of the scores fall between -1 to +1s?

• 15.73%

• 34.13%

• 49.86%

• 68.26%

Macey obtained a NAT percentile rank of 99. This means that

• They have a zero reference poin

• They have scales of equal units

• They indicate an individual’s relative standing in a group

• They indicate specific points in the normal curve

In which subject (s) did Andy perform best in relation to the group performance?

• Mathematics

• English

• PE

• English and Mathematics

In which subject(s) did Andy perform poorly in relation to the group performance?

• Mathematics

• English

• PE

• Math and English

In a normal distribution, a T-score of 30 is

• Two SDs below the mean

• One SD below the mean

• Two SDs above the mean

• One SD above the mean

In a normal distribution with a T-score of 80, the z-value is

• z=0

• z=1

• z=2

• z-3