SWPPS Statistics Exam.pdf

ECHELON REVIEW AND TRAINING CENTER Bringing Social Work Review at your Doorsteps! DTI Permit Business Name No. 2642789 Mayor’s Permit: 0401-635 Statistics in Socia...

ECHELON REVIEW AND TRAINING CENTER Bringing Social Work Review at your Doorsteps! DTI Permit Business Name No. 2642789 Mayor’s Permit: 0401-635 Statistics in Social Work Name: __________________________________ Date: ___________ Score: __________ Instructions: Read the questions carefully. You can write anything in this questionnaire if it facilitates better understanding. Write your answers clearly in the separate answer sheet that requires you to shade the letter of your answer. Make sure you shade it properly and clearly. Your performance on this drill will help you identify if you need intensive study for this subject in preparation for the Licensure Examination for Social Workers. 1. These are information that is represented by numbers or by attributes. a. Data b. Variable c. Values d. Categories e. Data Set ANSWER: A 2. It is the application of human creativity. a. Science b. Arts c. Education d. Analysis ANSWER: B 3. This is the first method of presenting data. Ans a. Through graphical presentation b. Through textual presentation c. Through tabular presentation d. Through data-gathering ANSWER: B 4. Science comprises the “systematic knowledge gained through observation and experimentation.” One of its aspects is applied science which is built on real- world observations. What do you call the gathering of this real-world observations? a. statistics b. phenomenology c. science d. research ANSWER: D 5. Formed when there is a collection of data values. a. Data b. Variable c. Values d. Categories e. Data Set ANSWER: E 6. You can show the summary of the data presented in the form of class intervals and frequencies in this table a. Frequency Distribution Table b. Summary Distribution Table c. Data Frequency Distribution Table d. Distribution Table ANSWER: A 7. What do you call this type of table below. GENDER TOTAL TRIBE MALE FEMALE Meranao 29 55 84 Non-Meranao 12 4 16 Total 41 59 100 a. Cross-sectional Distribution 1  ECHELON REVIEW AND TRAINING CENTER Bringing Social Work Review at your Doorsteps! DTI Permit Business Name No. 2642789 Mayor’s Permit: 0401-635 b. Multiple-Data Distribution Table c. Two-way frequency distribution d. Bilateral Distribution Table ANSWER: C 8. When each of the value occurs only once, how do you describe the mode? a. No Mode b. The mode is Zero c. Bimodal d. Unimodal ANSWER: A 9. These are a form of data when organized into a frequency distribution. a. Grouped data b. Data Categories c. Mode d. Variables ANSWER: A 10. These variables can assume all values between any two specific values. a. finite variables b. Continuous variables c. discrete variables d. Bivariate ANSWER: B 11. These variables assume values that can be counted. a. finite variables b. Continuous variables c. discrete variables d. Bivariate ANSWER: C 12. These are basic research methods that emphasize depth of understanding and the deeper meanings of human experience. a. Quantitative Research Method b. Qualitative Research Methods c. Scientific Research d. Social Research ANSWER: B 13. The survey of the population. a. Consensus b. Census c. Enumeration d. House-to-House ANSWER: B 45 40 35 30 Frequency 25 20 15 10 5 0 39.5 46.5 53.5 60.5 67.5 74.5 81.5 14. Name the graph above. a. Frequency Ogive b. Frequency Polygon c. Pie Chart d. Histogram ANSWER: A 2  ECHELON REVIEW AND TRAINING CENTER Bringing Social Work Review at your Doorsteps! DTI Permit Business Name No. 2642789 Mayor’s Permit: 0401-635 15. It is the data point which divides the distribution into two equal parts. a. Mean b. Mode c. median d. range ANSWER: C 16. This sampling assumes that the population is naturally separated by groups. a. Systematic Sampling b. Cluster Sampling c. Simple Sampling d. Stratified Sampling ANSWER: B 17. This refers to a subset of a population. a. Sampling b. Sample c. Statistic d. Parameter ANSWER: B 18. In this type of sampling, the researcher will ask an identified key respondent for the names and locations of others whom he knew who would also fit the profile of subjects for the study. a. Snowball Sampling b. Convenience Sampling c. Purposive Sampling d. Quota Sampling ANSWER: A 19. We use this sampling when the size of the population is either unknown or cannot be individually identified. a. Non-probability sampling b. Probability Sampling c. Judgment Sampling d. Snowball Sampling ANSWER: A 20. Classify these examples: In a large school district, all teachers from two buildings are interviewed to determine whether they know any students who are victims of bullying. a. Simple random b. Systematic c. Stratified d. Cluster ANSWER: D 21. Municipal link workers are selected using random numbers in order to determine average caseloads. a. Simple random b. Systematic c. Stratified d. Cluster ANSWER: A 22. Every hundredth “sardinas” stocked in the DSWD is checked to determine its expiration date. a. Simple random b. Systematic c. Stratified d. Cluster ANSWER: B 23. Mail carriers of a large city are divided into four groups according to gender (male or female) and according to whether they walk or ride on their routes. Then 10 are selected from each group and interviewed to determine whether they have been bitten by a dog in the last year. a. Simple random b. Systematic 3  ECHELON REVIEW AND TRAINING CENTER Bringing Social Work Review at your Doorsteps! DTI Permit Business Name No. 2642789 Mayor’s Permit: 0401-635 c. Stratified d. Cluster ANSWER: C 24. The statements below are classified as descriptive statistics, except for: I. The average price of a unit of Camella homes sold in Cagayan de Oro during the week of April 22-28, 2012 was PhP1,051, 053. II. According to Provincial Statistics Office, 85% of the workers in their province get to work in public utility vehicle. III. The National Eye Institute has halted a clinical trial on a type of eye surgery, calling it ineffective and possibly harmful to a person’s vision. IV. According to the Court of Justice of the Philippines, 14% of trial-ready civil actions and equity cases during 1993 were decided in less than six months. V. The average number of students in a class in Mindanao State University is 22.6. a. I and II b. II and III c. II, IV, and V d. III and V ANSWER: B 25. These statements are numerical data except for? a. Number of seats in classrooms. Numerical b. Classification of children in a day care center (infant, toddler, etc.) c. Length of fish caught in a certain stream d. Number of students who fail their first statistics examination ANSWER: B 26. Weights of pre-school children in Purok 2. What level of measurement is used here? a. nominal b. ordinal c. interval level d. ratio level ANSWER: D 27. Marital status of respondents to a survey on 4Ps in Wao, LDS. a. nominal b. ordinal c. interval level d. ratio level ANSWER: A 28. Income of household heads in Marantao, LDS. a. nominal b. ordinal c. interval level d. ratio level ANSWER: D 29. The social stratification in the country (lower class, middle class, upper class). a. nominal b. ordinal c. interval level d. ratio level ANSWER: B 30. The registered social worker, Mr. Kuku, has an IQ level of around 170, higher than Albert Einstein’s. a. nominal b. ordinal c. interval level d. ratio level ANSWER: C 4  ECHELON REVIEW AND TRAINING CENTER Bringing Social Work Review at your Doorsteps! DTI Permit Business Name No. 2642789 Mayor’s Permit: 0401-635 31. It represents a cumulative frequency distribution. It is constructed by plotting class boundaries on the horizontal scale and the cumulative frequency less than the upper-class boundaries on the vertical scale. a. Frequency Polygon b. Frequency Ogive c. Histogram ANSWER: B 32. This is a graph where the different classes are represented by rectangles or bars. The width of the rectangle is the length of the interval, represented by the class limits in the horizontal axis, or categories for nominal data. The length of the rectangle, corresponding to the class frequency, is drawn in the vertical axis. a. Bar Chart b. Histogram c. Pie Chart ANSWER: B 33. It is the total number of observations whose values do not exceed the upper limit or boundary of the class. a. frequency b. cumulative frequency c. relative frequency ANSWER: B 34. It divides the class into two equal parts. It is obtained by dividing the sum of lower and upper-class limits or class boundaries of a class by 2. a. Class Mark b. Class Point c. Both a and b ANSWER: A 35. This is obtained by dividing the range of the raw data by the number of classes. But the result is rounded up to the nearest higher value whose precision is the same as those of the raw data. a. Class Size b. Class Width c. Both a and b ANSWER: C 36. This is the difference between the largest and the smallest values. a. range b. interval c. distribution ANSWER: A 37. This sampling technique is useful if you know little about the group or organization you wish to study, as you only need to make contact with a few individuals, who can then direct you to the other members of the group. a. Judgment Sampling b. Convenience Sampling c. Snowball Sampling ANSWER: C 38. Chance is used to select participants. a. Both b and c b. probability c. non-random d. hypothesis ANSWER: B 39. What is applied if, between two strata of different sizes, a bigger sample will be taken from the bigger stratum? a. Stratified Random Sampling b. Cluster Sampling c. Systematic Random Sampling ANSWER: A 5  ECHELON REVIEW AND TRAINING CENTER Bringing Social Work Review at your Doorsteps! DTI Permit Business Name No. 2642789 Mayor’s Permit: 0401-635 40. It has an inherent zero starting point. a. Ordinal b. Ratio c. Interval d. nominal ANSWER: B 41. The Likert scale is: a. Ordinal b. Nominal c. Ratio d. nominal ANSWER: A 42. What is an example of a discrete variable? a. Temperature b. Salary c. Number of siblings d. Year ANSWER: C 43. What is a weighted mean in statistics? a. The weighted mean is calculated by adding together all data points and dividing the total by the number of observations, assuming that every value carries an equal amount of importance. b. The weighted mean is dividing the total sum of all data points by the number of observations yielding a varied importance c. The weighted mean is an average where each data point has a specific importance attached to it d. All of the above ANSWER: C 44. These are measures of the degree to which numerical data are scattered or spread. a. Measures of Variation b. Measures of Central tendency c. Measures of Symmetry d. Measure of Position ANSWER: A 45. What are measures of position? a. Summary statistics that describe the shape and form of a distribution b. Values that indicate where a particular data point is located within a dataset c. Numerical values or numeric labels assigned to categories or groups for identification of the positions d. none of the above ANSWER: B 46. It is calculated by taking the average of the squared differences between each data point and the mean. a. standard deviation b. variance c. coefficient of variation d. percentile ANSWER: B 47. The chart above shows: a. similar mean, median and mode b. different mode but similar median and mean c. equal mean and mode but not median ANSWER: A 6  ECHELON REVIEW AND TRAINING CENTER Bringing Social Work Review at your Doorsteps! DTI Permit Business Name No. 2642789 Mayor’s Permit: 0401-635 48. This method is applicable for comparing multiple datasets that have similar means and share a common unit of measurement by gauging their relative differences in variability. a. standard deviation b. variance c. coefficient of variation d. percentile ANSWER: A 49. This is a statistical measure that allows for the comparison of standard deviations across different datasets, even when their units of measurement are distinct. For example, if we were looking at two different sets of test scores - one measured on a scale from 0-100 and another on a scale from 0-10 - we would not be able to compare their standard deviations directly because they would have different units attached. However, using this would allow us to normalize these measurements so that we can make meaningful comparisons between them despite such scaling differences. a. coefficient of variation b. z-scores c. significant difference analyses d. standard deviation ANSWER: A 50. These divide a distribution of data into 10 equal parts. a. deciles b. quartiles c. percentiles d. quintiles ANSWER: A 51. Which is not a type of inferential statistics? a. estimation b. hypothesis testing c. symmetry ANSWER: C 52. A relationship between two variables that can be positive or negative. a. correlation b. causation c. hypothesis testing ANSWER: A 53. What is an alternative hypothesis? a. A statement that assumes there is no difference between two groups b. A research hypothesis that contradicts a null hypothesis c. The likelihood of rejecting a true null hypothesis d. A statement that shows there is no significant differences between groups e. The statistical significance level used to test hypotheses ANSWER: B 54. It is a non-parametric test that is used to measure the degree of association between two variables. The test does not carry any assumptions about the distribution of the data and is the appropriate correlation analysis when the variables are measured on a scale that is at least ordinal. a. Kendall's tau b. Pearson’s r c. Spearman rank correlation d. T-test ANSWER: C 55. What is Kendall rank correlation? a. A non-parametric test that measures the difference between two groups b. A non-parametric test that measures the strength of dependence between two variables c. A parametric measure that is used to compare variability across different datasets. d. all of the above ANSWER: B 7  ECHELON REVIEW AND TRAINING CENTER Bringing Social Work Review at your Doorsteps! DTI Permit Business Name No. 2642789 Mayor’s Permit: 0401-635 56. This is the best method to summarize the Likert scale data. a. mean b. median c. mode d. all of the above ANSWER: C 57. Which of the following research questions can be examined using Spearman correlation? a. Is there a statistically significant relationship between participants' level of education (high school, bachelor’s, or graduate degree) and their starting salary? b. Is there a statistically significant relationship between a horse's finishing position in a race and a horse's age? c. Both a and b d. none of the above ANSWER: C 58. A researcher wants to test whether a new drug significantly lowers blood pressure compared to a placebo. They collect blood pressure measurements from 30 participants who received the drug and 30 participants who received the placebo. Which type of t-test should the researcher use to analyze the data? a. One-sample t-test b. Paired t-test c. Independent t-test d. Chi-square test ANSWER: C 59. This means assigning the numbers to categories to a response after data are collected, the response might be open-ended questions for quantitative research or an interview response for qualitative research. a. coding b. post-coding c. pre-coding d. decoding ANSWER: B 60. Ordinal data such as Likert scale which is popular in social sciences researches utilizes this principle. a. equifinality b. equidistance c. equity d. equifinity ANSWER: B 61. What is true about parametric statistics? a. For the population, not much information about it is available b. For distribution, it does not require the population to be normally distributed c. For sample size, it can work with smaller samples d. For interpretability, they are easy to interpret ANSWER: D 62. What is true about non-parametric? a. It uses z-test b. it uses t-test c. it uses Chi-Square Test d. It uses ANOVA ANSWER: C 63. In the context of a bell curve, or normal distribution, what does kurtosis measure? a. The center of the distribution b. The spread of the distribution c. The symmetry of the distribution d. The peakedness or flatness of the distribution ANSWER: D 8  ECHELON REVIEW AND TRAINING CENTER Bringing Social Work Review at your Doorsteps! DTI Permit Business Name No. 2642789 Mayor’s Permit: 0401-635 64. This analysis is a statistical technique used in social science research to analyze and understand the relationships among three or more variables simultaneously. It enables researchers to examine complex relationships and interactions among multiple variables. a. Bivariate b. Univariate c. Ambivariate d. None of the above ANSWER: D 65. In statistical analysis, what is the primary purpose of the chi-square test? a. To compare the means of two independent groups b. To measure the strength and direction of a linear relationship between two variables c. To test the independence of two categorical variables d. To assess the normality of a distribution ANSWER: C 9