Besc 3010 exam Study guides, Class notes & Summaries

BESC 3010 Final Exam Questions And Answers 100% Verified. What inferential test should be used to compare two sample means to each other? - correct two-sample t-test The most important difference between Cohen's d and the t-test is that Cohen's d... - correct not affected by sample size What is the formula for the degrees of freedom (df) for a two-sample t-test? - correct answer.n-2 if a researcher wants to compare the effects of an antidepressant to the effects of a pla...

BESC 3010 Exam 1 Categorical variable - Answer- Indicates different categories. Ex: gender, college major etc. Nominal variable - Answer- The variable consists of names of categories. The coding system is arbitrary. Ordinal variables - Answer- Indicates first, second, third, etc. rank variables. Quantitative variables - Answer- You can measure the size of the differences between scores and not just that they are different. Divided into interval and ratio. Interval variable - Answe...

In a sample of women, the number of children that each woman has is an example of which level of measurement? Interval Nominal Ordinal Ratio - Answer-ratio Military ranks are an example of what level of measurement? Nominal Ratio Ordinal Interval - Answer-ordinal Gender is an example of what level of measurement? Interval Nominal Ratio Ordinal - Answer-nominal The visual difference between bar graphs and histograms is that in (1) the bars touch each other and in (2) the bars...

A variable that classifies people into racial or ethnic groups is what level of measurement? ratio interval nominal ordinal - Answer-nominal The number of students enrolled at UVU each year is an example of which level of measurement? ordinal ratio nominal interval - Answer-ratio The amount of time that a person spends on social media each week in minutes is a(n) _____ variable. ordinal nominal interval ratio - Answer-ratio If a person's sex is coded as...

one reason that researchers nearly always gather data from samples of participants instead of entire populations is because.... - Answer-It can be impractical or even impossible to study populations If a test has a population mean of 70 and standard deviation of 6, then what is the z-score for a sample of n = 9 with a mean of 76? - Answer-3 The central limit theorem says that when all possible samples of a sufficient size are taken from a population and their means are charted, the distrib...

Mean (6 Questions) (most affected by) - Answer-Most affected by outliers Mean (needs at least) - Answer-Needs at least interval Median (least affected by) - Answer-Least affected by outliers Median (needs at least) - Answer-Needs at least ordinal Mode (Needs at least) - Answer-Needs at least nominal Variance (5 Questions) (If low, then) - Answer-If low, then individuals in data set are very similar Range - Answer-Most sensitive to extreme scores Standard Deviation (Sample vs...

BESC 3010, Practice Final Exam Questions with accurate answers. Verified. In a sample of women, the number of children that each woman has is an example of which level of measurement? A. nominal B. ordinal C. interval D. ratio - -Ratio Remember with ratio you can have an absolute zero of something. Military ranks are an example of what level of measurement? A. nominal b. ordinal C. interval D. ratio - -ordinal; because one person has a higher rank than another but doesn't spe...

BESC 3010 Final Exam What inferential test should be used to compare two sample means to each other? - Answer- the two-sample t-test The most important difference between Cohen's d and the t-test is that Cohen's d... - Answer- is not affected by sample size What is the formula for the degrees of freedom (df) for a two-sample t-test? - Answer- n-2 if a researcher wants to compare the effects of an antidepressant to the effects of a placebo on levels of anxiety, then what is the inde...