# What are three different statistical tests of significance? When is each used?

SOC 321 HW:

Q1: What are three different statistical tests of significance? When is each used?

Q 2 : What is the difference between inferential and descriptive statistics?

Q3: What is a control variable? Is it used in multivariate or bivariate analysis? Give an example.

Q4: What is the difference between a loaded and a double barreled question? Give an example of each, and how to avoid.

Q5: What is replication? Is it most relevant for bivariate or multivariate analysis?

Q6: The 10-point rule is a general rule for interpreting crosstabs that says that a 10 point difference or higher between variables is meaningless.

 True False

Q7: Epsilon measures the difference between the largest and smallest percentages in a row of a crosstab.

 True False

Q8: The slope of a regression line is the point where it crosses the X axis, while the intersect is the angle it forms with the X and Y axes.

Question 8 options:

 True False

Q9:An association between variables that is significant at the .05 level is stronger than one that is significant at the .001 level.

Question 9 options:

 True False

Q10:Experiments are the best research design to establish causality.?

 True False

Q.11: (This covers how to properly write a questionnaire)

Identify the problem with each of the following survey questions, and tell us how you would fix the problem, or reword the questions so that this problem is addressed to the best of your ability. Read carefully!

In your opinion, given the number of people who suffer because they cannot afford medical care or college, should the government offer more comprehensive healthcare programs for young adults?

Yes , No, Don’t know, No answer

Question 11:

Q12: Identify the problem with the following survey question, and tell us how you would fix the problem, or reword the questions so that this problem is addressed to the best of your ability. Read carefully!  In your opinion, should the government spend more money on healthcare and education?

Yes No Don’t know No answer

Question 12 options:

Question 13 (5 points)

Identify the problem with the following survey question, and tell us how you would fix the problem, or reword the questions so that this problem is addressed to the best of your ability. Read carefully!

When do you usually consume alcohol?

At parties With friends in bars When I am depressed Don’t know No answer

Question 13 options:

Question 14 : Identify the problem with the following survey question, and tell us how you would fix the problem, or reword the questions so that this problem is addressed to the best of your ability. Read carefully!   What is the annual income in your household?

\$0 to 20,000 \$20,000 to \$40,000 \$40,000 to \$60,000 \$60,000 or more Don’t know No answer

Question 14 options:

Question 15: Identify the problem with the following survey question, and tell us how you would fix the problem, or reword the questions so that this problem is addressed to the best of your ability. Read carefully!

Where to you most often buy school supplies?

At the store closest to me A the store that has the biggest sales From a national chain store It depends Don’t know No answer

Question 15 options:

Question 16:

Describe and explain the cross-tab below in 5 to 10 lines. Question 17 :What test of significance would you use for this case of bivariate or multivariate analysis? Assume that each variable is measured at its highest possible level of measurement. Meaning, for instance, that age is always ratio, not ordinal. Weekly hours of study and GPA

Question 17 options:

 ANOVA regression Chi-square t-test

Question 18 :What test of significance would you use for this case of bivariate or multivariate analysis? Assume that each variable is measured at its highest possible level of measurement. Meaning, for instance, that age is always ratio, not ordinal. Income by years of education and age

Question 18 options:

 regression ANOVA t-test Chi-square

Question 19 :What test of significance would you use for this case of bivariate or multivariate analysis? Assume that each variable is measured at its highest possible level of measurement. Meaning, for instance, that age is always ratio, not ordinal. Age at first marriage by parents’ income

Question 19 options:

 Chi-square t-test regression ANOVA

Question 20 :

What test of significance would you use for this case of bivariate or multivariate analysis? Assume that each variable is measured at its highest possible level of measurement. Meaning, for instance, that age is always ratio, not ordinal. Number of movies seen in a year by years of education

Question 20 options:

 regression Chi-square ANOVA t-test

Question 21 :What test of significance would you use for this case of bivariate or multivariate analysis? Assume that each variable is measured at its highest possible level of measurement. Meaning, for instance, that age is always ratio, not ordinal. Number of employees by companies’ industry or business

Question 21 options:

 ANOVA Chi-square t-test regression