Leadership 3760 Quiz 4.docx - Quiz i Note It is recommended...

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Unformatted text preview: Quiz i Note: It is recommended that you save your response as you complete each question. Question 1 (2 points} Q Which of the following is NOT a step in data collection? 0 the designation of a coding strategy 0 the construction of a data collection form E the selection of a sample D entry onto the data collection form Question 2 (2 points) "' Which is a pitfall of using an optical scanner? o it is accurate D it is fast a it is expensive D it can provide additional analysis of items Question 3 (2 points} What is the best code to use Iwhen ceding gender? fl 1,2 0 M,F 0 male, female 0 bar, girl Question 4 (2 points} Which of the following measures is NOT a measure of central tendency? G mean G macle G mass G meclian Question 5 (2 points} What is a another wayr to describe mean? Ci variability Ci deviation a average score U test statistic Question 6 (2 points} What is another viral:r mode can be described? a occurs most frequentlyr G tells how much variabilitiJlr there is in the test scores G divides the sample in half a averages the test scores Question If (2 points} 9 Which of the following is NOT a measure of the degree of spread or dispersion of scores? 0 range 0 variance 0 standard deviation a mode Question 8 (2 points} which measure of central tendencyr provides the most information? 0 mode 0 median a mean 0 midpoint Question 9 (2 points} B How can descriptive statistics be defined? 0 relating the data to a larger population fl describing elements of a distribution 0 identical to inferential statistics 0 developing a research question Question 10 {2 points) H In a normal distribution, what percentage of scores fall between the mean and a z—score of +1.1]l]? D 5D% D 95% a 34% D 1E% Question 11 {2 points) Q What is another phrase used to describe a bell—shaped curve? C} regular—shaped curve C} elliptical curve a normal curve 0 average EU WE! Question 12 (2 points) E which is the best measure of central tendencyr to use when working with ordinal data? c: range a median d mode Cl mean Question 13 (2 points) B When you have internal or ratio clata [such as age in years}, what is typically the best measure of central tendency? 0 range o mocle a mean o median Question 14 {2 points) 9 What is rejecting the null hypothesis when it is true? G correct G Type II error G Type I error G Type III error Question 15 {2 points) B What is the statistical test for examining the significant difference between two means from two unrelated groups? G t—test for dependent means a t—test for independent means o factor analysis Ci MNDUA Question 16 (2 points) I What technique reduces the number of variables in a construct? D MANDUA D t—test a factor analysis cw effect size Question 1? {2 points) What is the crucial element in making an accurate inference? o cloing a goocl literature review o statistical software o being well versecl in multivariate statistical proceclures a obtaining a representative sample of the population Question 18 (2 points) Which of the following states that regarclless of the shape of a population, the means of all the samples selectecl will be normallv distributed? a central limit theorem o factor analvsis o Tvpe II Error o Tvpe I Error Question 19 (2 points) E Meaningfulness is better than significance. a True G False Question 20 (2 points) B One of the keys to successful operation of the central limit theorem is that the sample size must be if) greater than 41] if) greater than Si] a greater than 3|] ID less than 21] Question 21 (2 points) E If Helen mistakenly accepts her null hypothesis when it shoulcl he rejected, what has occurred? a Type II error C: Type III Error G researcher bias 0 Type I error Question 22 (2 points) How can Tvpe II errors he reduced? 0 select a heterogeneous population 0 select a homogeneous population a increasing sample size 0 decreasing sample size Question 23 {2 points) The critical value is G the value needed to determine the reliahilitvr of a studv G the value need to determine the validity of a studv G the value found after calculating a test statistic a the valued needed to reject the null hvpothesis Question 24 (2 points) The critical value decreases when 3' the sample size decreases *3 the sample is homogeneous *3 the sample size increases *3 the sample is heterogeneous Question 25 (2 points) In order to determine the critical value, which two pieces of information are needed? if) degrees of freedom and variance G mean and sample size if) mean and standard deviation a degrees of freedom and level of significance Overall Grade (highest attempt}: 48 3' 5|] ...
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