If you obtained a sample of data that was relatively normally distributed and had no extreme scores, which measure of central tendency would you opt for?

Which of the following measures of central tendency are sensitive to extreme scores?

Given the following graph, how would you describe the distribution?

A researcher is studying the effects of having (or not having) a pet on aggression (measured as scores in an aggression test). What is the best central tendency for the independent variable?

A researcher is studying the effects of having (or not having) a pet on aggression (measured as scores in an aggression test). What is the best central tendency for the dependent variable?

You have grouped elderly into three groups: (1) those who will perform daily shibashi qi gong exercises, (2) those who will undergo counseling as usual, and (3) those who will undergo nothing. You will then compare the subjective happiness reports (as scores) of participants across this three groups. Which is the best measure of central tendency for your IV?

You have grouped elderly into three groups: (1) those who will perform daily shibashi qi gong exercises, (2) those who will undergo counseling as usual, and (3) those who will undergo nothing. You will then compare the subjective happiness reports (as scores) of participants across this three groups. Which is the best measure of central tendency for your DV?

The researcher is describing his sample this way, "half of the participants scored less than 33 and the remaining half scored more than 33." Which measure of central tendency is used here?

If a researcher studies a nominal variable, which of the following measure of central tendency is most appropriate?

If the researcher is describing the ages of the participants according to age groups, which of the following measure of central tendency is most appropriate?

The researcher was asked to make a description about the IQ scores of the participants. Which of the following central tendency measure is most appropriate?

The researcher was asked to describe the IQ ranges of the participants (e.g. average, above average, high, etc.). Which of the following measure of central tendency is most appropriate?

The researcher was studying the effects of happiness (as scores) on the wellbeing (as scores) of the participants. Which of the following central tendency is most appropriate for the DV?

In a 50-item quiz, the participants (n=15) got a score of 47, 45, 12, 48, 47, 47, 49, 50, 9, 48, 46, 46, 47, 45, 49. Which of the following is the best central tendency to use? You may choose multiple answers.

The data shows from a sample (n=30):

Males = 14

Females = 16

What is the mean?

The scores in 50-item quiz with a sample n=11 are: 2,4,5,5,6,7,7,8,9,9,43. What is the most correct central tendency description to use?

The standard deviation is equal to:

What is the relationship between sampling size and sampling error?

The mode is:

A normal distribution should have which of the following properties?

With the following scores in a 50-item test with n=13: 3, 22, 22, 23, 24, 24, 25, 25, 26, 26, 28, 28, 50. What is the most appropriate measure of variability?

In a test, Section A got a standard deviation of 1.34 while Section B got a standard deviation of 6.54. Which of the following statements would be most correct about this?

The researcher is comparing two groups in a 50-item test. The groups descriptive statistics yielded:

Group A: mean = 43, sd = 0.02

Group B: mean = 25, sd = 1.67

Which of the following groups would likely be skewed?

A researcher was studying the differences in IQ between males and females. Which is the most appropriate measure of variability to use for the IV?

If you randomly select a sample of 20 pandas (Sample A), then select a sample of 300 pandas (Sample B) and calculate the mean weight for each sample, which is likely to give a better estimate of the population mean weight?

You are developing a mental exercise which you hope would improve the memory of students taking Psychology. Before the exercise training (treatment), the group's SD was 1.34. After the exercise training (treatment, the group's SD was 4.56. Which of the following is a correct statement about this?

Suppose that you in a 30 item quiz, a sample of n=10 got a mean of 23. Because they were all very active in the class, you gave them all added bonus of 2 points. What is now the mean?