PSY 325 Entire Course (2 Set) To Purchase This Material Click below Link FOR MORE CLASSES VISIT www.psy325aid.com This Tutorial contains 2 Papers for each Assignment and Quiz (DQs--- 1 Set Only) PSY 325 Week 1 Assignment Descriptive Article Critique (Men Alcohol and Personality) (2 Papers) PSY 325 Week 1 DQ 1 Data Analysis PSY 325 Week 1 Quiz (2 Set) PSY 325 Week 2 Assignment Inferential Statistics Article Critique (Smoking and Exercise) (2 Papers) PSY 325 Week 2 DQ 1 Standard Normal Distribution PSY 325 Week 2 Quiz (2 Set) PSY 325 Week 3 Assignment ANOVA Article Critique (Cognitive Effects of Risperidone) (2 Papers) PSY 325 Week 3 Quiz (2 Set) PSY 325 Week 3 DQ 1 ANOVA PSY 325 Week 4 Assignment Research Report (2 Papers) PSY 325 Week 4 Quiz (2 Set) PSY 325 Week 4 DQ 1 Correlation PSY 325 Week 5 Final Exam Paper (2 Papers) PSY 325 Week 5 DQ 1 Chi-Square ………………………………………………………………………………..

PSY 325 Week 1 Assignment Descriptive Article Critique (Men Alcohol and Personality) (2 Papers) To Purchase This Material Click below Link FOR MORE CLASSES VISIT www.psy325aid.com This Tutorial contains 2 Papers of this Assignment

Descriptive Statistics Article Critique. Read the article, “Do Men with Excessive Alcohol Consumption and Social Stability Have an Addictive Personality?” and identify the research questions and/or hypotheses as they are stated in the article. If you need assistance looking up the article with the citation, please view the Finding an Article When You Have a Citation tutorial, which is located under “Getting Research Help” within the Ashford University Library. As you read the article, consider the following questions: What are the variables (sample sizes, population, treatments, etc.)? What are the descriptive statistics used in this article (frequencies, means, etc.)? Write a two- to three-page paper presenting the information listed below. Your paper must contain a title page and a reference page formatted in APA style. Cite any references made to the article within the body of the paper in correct APA format. Your paper should begin with an introduction paragraph that includes a thesis statement and ends with a concluding paragraph. The concluding paragraph should summarize the major points made in the body of the paper and reaffirm the thesis. When writing the article critique, your paper must: • Determine what question(s) the authors are trying to answer through this research. • Determine the hypothesis being tested and the concepts that were applied in this process. • Evaluate the article and critique the statistical analysis employed in the study. Would you have included more and/or different variables? Explain your answer. • Examine the assumptions and limitations of the statistical study. What would you have done differently in this case? Why? • Identify how the authors applied statistical testing to the problem. • Interpret the findings of the author(s) using statistical concepts. …………………………………………………………………… …………..

PSY 325 Week 1 DQ 1 Data Analysis To Purchase This Material Click below Link FOR MORE CLASSES VISIT www.psy325aid.com Data Analysis Analysis. For this discussion, you will organize data sets into meaningful number groupings, calculate basic descriptive values, and communicate written critiques of statistical analyses. This exercise requires the use of a descriptive statistics calculator. You can find this tool in some versions of Excel (as part of the Analysis ToolPak ToolPak) or you can use one of the many free online descriptive calculators such as the Descriptive Statistics Calculator by Calculator Soup. To begin, come up with 20 different data points (that will form a set of data) and enter them into the first column of an Excel spreadsheet. The data points can be any numbers you want as long as there are 20 of them. You will then use the descriptive statistics option in your descriptive statistics program or calculator. This is explained in Chapter 1 of your course text. You should get an output similar to the image in Figure 1.1. This output must contain the following values: mean, standard error, median, mode, standard deviation, sample variance, kurtosis, skewness, range, minimum, maximum, sum, and count. Address the following points in your initial post: • Begin your discussion by reporting your results for each of the values listed above. • Based on this output, which single value best describes this set of data and why? • If you could pick three of these values instead of only one, which three would you choose and why? It is important to note that the answers to these questions may be different for each of you since you are each using unique sets of data.

………………………………………………………………………………..

PSY 325 Week 1 Quiz (2 Set) To Purchase This Material Click below Link FOR MORE CLASSES VISIT www.psy325aid.com PSY 325 Week 1 Quiz Set 1 1. Question : Frequency polygon is to line graph as _________ is to bar graph. 2. Question : The relative frequency of the scores in a class interval = .25. What does that mean? 3. Question : How is a frequency polygon different from a bar chart? 4. Question : Values that indicate the relevant characteristics of a group to be studied are ___________. 5. Question : To calculate mean, at least ordinal data are required. 6. Question : Which statistic is always based on just two values? 7. Question : Which statistic indicates the most frequently occurring number in a set? 8. Question : A distribution with s = 4 and R = 12 is leptokurtic. 9. Question : Once the range is established, no additional value can make it smaller. 10. Question : “Class intervals” in data arrays serve what purpose? PSY 325 Week 1 Quiz Set 2 1. Question : In a group of students where most are female, Mo = female.

2. Question : Values that indicate the relevant characteristics of a group to be studied are ___________. 3. Question : In statistics, a population refers to which of the following? 4. Question : Compared to a normal distribution, a ___________distribution appears to be “tall and skinny” whereas a __________distribution is “low and fat.” 5. Question : Which of the following is not a measure of central tendency? 6. Question : Which statistic indicates the middlemost value in a distribution? 7. Question : Grouping people by their ethnic group membership constitutes data of what scale? 8. Question : In statistics, the term average is used to signify only the mean. 9. Question : If there are several mathematical operations in a formula, which comes first? 10. Question : A distribution with s = 4 and R = 12 is leptokurtic. ………………………………………………………………………………..

PSY 325 Week 2 Assignment Inferential Statistics Article Critique (Smoking and Exercise) (2 Papers) To Purchase This Material Click below Link FOR MORE CLASSES VISIT www.psy325aid.com This Tutorial contains 2 Papers of this Assignment Inferential Statistics Article Critique. Read the article “Differential Effects of a Body Image Exposure Session on Smoking Urge Between Physically Active and Sedentary Female Smokers,” and identify the research questions and/or hypotheses as they are stated. Consider the following questions: What are the variables

(sample sizes, population, treatments, etc.)? What are the inferential statistics used in this article? Were the proper steps of hypothesis testing followed? Write a two- to three-page paper presenting the information listed below. Include a title page and reference page in APA style. Cite any references made to the article within the body of the paper in APA style. Your paper should begin with an introductory paragraph (including a thesis statement) and end with a concluding paragraph summarizing the major points made in the body of the paper and reaffirming the thesis. When writing the article critique, your paper must: 1. Determine what question(s) the authors are trying to answer by doing this research 2. Determine the hypothesis being tested and the concepts that were applied in this process. 3. Evaluate the article and critique the statistical analysis employed in the study. • Would you have included more and/or different variables? Explain your answer. 4. Examine the assumptions and limitations of the statistical study. • What would you have done differently in this case? Why? 5. Identify how the authors applied statistical testing to the problem. 6. Interpret the findings of the author(s) using statistical concepts. ………………………………………………………………………………..

PSY 325 Week 2 DQ 1 Standard Normal Distribution To Purchase This Material Click below Link FOR MORE CLASSES VISIT www.psy325aid.com Standard Normal Distribution Distribution. For this discussion, identify the appropriate application of standardized scores to reflect on their

benefits and to interpret how test scores and measures are commonly presented. Review Chapter 3 of your course text, which introduces probability and the standard normal distribution. Examine the assumptions and limitations presented in these topics and then consider and discuss the following questions: • This is an easy to understand video that takes you step-by-step through the basic hypothesis testing process. It is helpful for learning what a p-value is and how statistical significance works. • When comparing data from different distributions, what is the benefit of transforming data from these distributions to conform to the standard distribution? • What role do z-scores play in this transformation of data from multiple distributions to the standard normal distribution? • What is the relationship between z-scores and percentages? • In your opinion, does one do a better job of representing the proportion of the area under the standard curve? Give an example that illustrates your answer. ………………………………………………………………………………..

PSY 325 Week 2 Quiz (3 Set) To Purchase This Material Click below Link FOR MORE CLASSES VISIT www.psy325aid.com PSY 325 Week 2 Quiz Set 1 1. Question : The table value z = .70 is .2580. The z = .70 value occurs at what equivalent percentile? 2. Question : Rejecting the null hypothesis is the same as saying _____________. 3. Question : If the z transformation is used with population data, M is replaced by what symbol?

4. Question : How does the standard normal distribution differs from other normal distributions? 5. Question : A one-sample t value is statistically significant in which situation? 6. Question : All standard scores have which characteristic in common? 7. Question : If x = 12, M = 10 and s = 2, z = _______. 8. Question : The distribution of sample means refers to _______________. 9. Question : A distribution where the mean and standard deviation have pre-determined values calls for ________. 10. Question : If the mean of the distribution of sample means isnâ€™t given, how is it determined? PSY 325 Week 2 Quiz Set 2 Question :The table value z = .70 IS 2580. What percent of the population occurs below that point? The z-test asks whether the population from which thesample was drawn has the same mean as the population to which it is compared True. Question 3 4. Based on past experience, the probability that the sun will rise tomorrow is? 5 Rejecting the null hypothesis is the same as saying? 6 How many standard deviations below is 3 if z= -1.75 7 Degrees of Freedom refers to How many values can vary 8 If instead of z = (x â€“ M) / s the formula is x = z(s) + M, what is the result? 9 How does standard normal distribution differ from other normal distributions?. 10 What is the similarity between the z test and one sample t test? PSY 325 Week 2 Quiz Set 3

Based on past experience, the probability that the sun will rise tomorrow is ________. The standard error of the difference is a measure of pooled variance. The z scores is a ratio of difference to variability (t). How is the z-test different from z-score analysis? What advantage does the one-sample t offer over the z-test? In a distribution for which the mean is 25 and the standard deviation is 5, what percentage of all scores occur at 30 or below? Which is true of a one-tailed test? The distribution upon which the z-test is based has a mean of 1.0. In a distribution for which the mean is 25 and the standard deviation is 5, what percentage of all scores occur between 20 and 30? The z-test asks whether the population from which the sample was drawn has the same mean as the population to which it is compared. ………………………………………………………………………………..

PSY 325 Week 3 Assignment ANOVA Article Critique (Cognitive Effects of Risperidone) (2 Papers) To Purchase This Material Click below Link FOR MORE CLASSES VISIT www.psy325aid.com This Tutorial contains 2 Papers of this Assignment ANOVA Article Critique. Read the article "Cognitive Effects of Risperidone in Children with Autism and Irritable Behavior", and identify the research questions and/or hypotheses as they are stated. Consider the following questions: What are the variables (sample sizes, population, treatments, etc.)? How was the analysis of variance used in this article (and what type of ANOVA was used)?

Write a two- to three-page paper presenting the information listed below. In addition, provide a title page and reference page in APA style. Cite any references made to the article within the body of the paper in APA style. Your paper should begin with an introductory paragraph (including a thesis statement) and end with a concluding paragraph summarizing the major points made in the body of the paper and reaffirming the thesis ………………………………………………………………………………..

PSY 325 Week 3 DQ 1 ANOVA To Purchase This Material Click below Link FOR MORE CLASSES VISIT www.psy325aid.com ANOVA ANOVA. In this discussion, you will evaluate a research question and determine how that question might best be analyzed. To do this, you will need to identify the appropriate application of course specified statistical tests, examine assumptions and limitations of course specified statistical tests, and communicate in writing critiques of statistical tests. A researcher wishes to study the effect of a new drug on blood pressure. Consider and discuss the following questions as you respond: • Would you recommend using a z-test, a t-test, or an ANOVA for the analysis? Explain your answer. • What would your choice of test depend on? For the test you select, explain your design and your comparison groups. • Would the hypothesis be directional or non-directional? • Would the test be one-tailed or two-tailed? • What would be the null and what would be the alternative hypothesis? ………………………………………………………………………………..

PSY 325 Week 3 Quiz (2 Set) To Purchase This Material Click below Link

FOR MORE CLASSES VISIT www.psy325aid.com PSY 325 Week 3 Quiz Set 1 1. Question : How are mean square values determined? 2. Question : The within-subjects F is the dependent groups equivalent to what independent groups test? 3. Question : Why is matching uncommon when using the within-subjects F? 4. Question : Dependent groups designs have what strength from the standpoint of analysis? 5. Question : A matched pairs design requires no more time to administer than an independent groups test. 6. Question : What is the relationship between t and F if both are performed for a two-group test? 7. Question : What is the acronym for the phrase analysis of variance? 8. Question : The eta-squared statistic _____________. 9. Question : Using the same people repeatedly in a study has all but one of the following effects: 10. Question : Which statistic is the best expression of error variance in an ANOVA? PSY 325 Week 3 Quiz Set 2 1. Question : The within-subjects F is the nonindependent groups equivalent of the one-way ANOVA. 2. Question : Which statistic is the best expression of the treatment effect in an ANOVA? 3. Question : The post-hoc test for a within-subjects F test _____________. 4. Question : The one-way ANOVA requires all but one of the following conditions.

5. Question : Besides the tedium involved in performing all possible comparisons, what is the problem in conducting all possible t-test with multiple groups? 6. Question : Repeated measures designs increase the degrees of freedom involved in an analysis. 7. Question : “The square of the difference between each individual score in all groups and the mean of all the data” describes which of the following? 8. Question : The number of sets of measures that a within-subjects F will accommodate is ___________. 9. Question : Why is matching uncommon when using the within-subjects F? 10. Question : The independent variable in either a before/after t or a within subjectsF is always of what data scale? ………………………………………………………………………………..

PSY 325 Week 4 Assignment Research Report (2 Papers) To Purchase This Material Click below Link FOR MORE CLASSES VISIT www.psy325aid.com This Tutorial contains 2 Papers of this Assignment Research Report Report. Write a research report based on a hypothetical research study. Conducting research and writing a report is common practice for many students and practitioners in any of the behavioral sciences fields. A research report, which is based on scientific method, is typically composed of the different sections listed below: • Introduction: The introduction states a specific hypothesis and how that hypothesis was derived by connecting it to previous research. • Methods: The methods section describes the details of how the hypothesis was tested and clarifies why the study was conducted in that particular way.

• Results: The results section is where the raw uninterpreted data is presented. IV. Discussion: The discussion section is where an argument is presented on whether or not the data supports the hypothesis, the possible implications and limitations of the study, as well as possible future directions for this type of research. Together, these sections should tell the reader what was done, how it was done, and what was learned through the research. You will create a research report based on a hypothetical problem, sample, results, and literature review. Organize your data by creating meaningful sections within your report. Make sure that you: • Apply key concepts of inferential hypothesis tests. • Interpret the research findings of the study. • Examine the assumptions and limitations of inferential tests. • Develop a practical application of the research principles covered in this course. ………………………………………………………………………………..

PSY 325 Week 4 DQ 1 Correlation To Purchase This Material Click below Link FOR MORE CLASSES VISIT www.psy325aid.com Correlation Correlation. In this post, you will be challenged to look at how statistical tests, such as correlation are commonly used and the possible limitations of such analyses. In addition, you will need to identify the appropriate application of course-specified statistical tests, examine assumptions and limitations of course specified statistical tests, and communicate in writing critiques of statistical tests. Much has been written about the relationship between students’ SAT test scores and their family’s income. Generally speaking, there is a strong positive correlation between income and SAT

scores. Consider and discuss the following questions as you respond: • What does this correlation tell you? • Is this correlation evidence that having a high family income causes one to have high SAT scores? • Is this correlation evidence that high SAT scores are a cause of higher income? Or, does this tell you something else? Explain your answer. • Explain why correlation alone is rarely sufficient to demonstrate cause. ………………………………………………………………………………..

PSY 325 Week 4 Quiz (2 Set) To Purchase This Material Click below Link FOR MORE CLASSES VISIT www.psy325aid.com PSY 325 Week 4 Quiz Set 1 1. Question : If a correlation is +.90 or greater, we can assume that a causal relationship exists. 2. Question : How are degrees of freedom related to critical values of rxy? 3. Question : Under what circumstances will residual scores be large? 4. Question : Data of all the following descriptions are appropriate for the Spearman’s rho except: 5. Question : Which of the following defines the slope value in a regression solution? 6. Question : The least-squares criterion requires which of the following?

7. Question : What is the normality requirement for ordinary least-squares regression? 8. Question : The criterion variable in regression is ____________. 9. Question : The Pearson correlation requires data of at least what scale? 10. Question : Multiple regression refers to ______________. PSY 325 Week 4 Quiz Set 2 1. Question : Which of the following defines the intercept value in a regression solution 2. Question : Since a correlation of +1 is considered “perfect,” a correlation of -1 is as “imperfect” as can be. 3. Question : Each point in a scatter plot represents which of the following? xy in a Pearson correlation formula defines which of the following?Σ4. Question : The 5. Question : The intercept value in a regression solution indicates where the regression line crosses the x axis. 6. Question : The coefficient of determination (rxy2) is defined by __________. 7. Question : More widely scattered points in the scatterplot indicate ____________. 8. Question : In regression, shrinkage refers to which of the following? 9. Question : Another name for the b value in a regression solution is _________. 10. Question : Which kind of measurement scale leads to rank-ordered data? ………………………………………………………………………………..

PSY 325 Week 5 DQ 1 Chi-Square To Purchase This Material Click below Link

FOR MORE CLASSES VISIT www.psy325aid.com Chi-Square Chi-Square. The purpose of this discussion is to allow you to consider how various non- parametric tests are used and how they compare to other tests with similar variables. To do this, you will need to identify the appropriate application of course-specified statistical tests, examine assumptions and limitations of coursespecified statistical tests, and communicate in writing critiques of statistical tests. · Describe the chi-square goodness-of-fit test. · Provide a detailed explanation of what this test measures, and how it is similar to and different from the independent ttest and the chi-square test of independence. · How do you know when to use one analysis over the other? Provide a real-world example. ………………………………………………………………………………..

PSY 325 Week 5 Final Exam Paper (2 Papers) To Purchase This Material Click below Link FOR MORE CLASSES VISIT www.psy325aid.com This Tutorial contains 2 Papers of this Assignment Focus of the Final Exam The purpose of the Final Exam is to assess your understanding of the main statistical concepts covered in this course and to evaluate your ability to critically review a quantitative research article. The exam will consist of two parts: Part I includes three essay questions and Part II includes a research critique. All of your responses should be included in a single Word document for submission. Please include the following general headings for each section of the written exam within your Word document: Part I: Essay Questions

1. Essay 1 2. Essay 2 3. Essay 3 Part II: Research Study Critique 1. Introduction 2. Methods 3. Results 4. Discussion Your complete Word document must include a title page with the following: · Student’s name · Course name and number · Instructor’s name · Date submitted Part I: Essay Questions There are three essay questions in this section. You must answer all three questions. The length of each essay should be one to two double-spaced pages (excluding title and reference pages). Use 12point font and format your paper with regular 1-inch margins. Do not include the essay prompt in your document. It will not count toward the length requirement for your essays. Essay 1 A group of researchers conducted an experiment to determine which vaccine is more effective for preventing getting the flu. They tested two different types of vaccines: a shot and a nasal spray. To test the effectiveness, 1000 participants were randomly selected with 500 people getting the shot and 500 the nasal spray. Of the 500 people were treated with the shot, 80 developed the flu and 420 did not. Of the people who were treated with the nasal spray, 120 people developed the flu and 380 did not. The level of significance was set at .05. The proportion of people who were treated with the shot who developed the flu = .16, and the proportion of the people who were treated with the nasal spray was .24. The calculatedp value = .0008.

For this essay, describe the statistical approaches (e.g., identify the hypotheses and research methods) used in this excerpt from a research study. Interpret the statistical results and examine the limitations of the statistical methods. Finally, evaluate the research study as a whole and apply what you have learned about hypothesis testing and inferential statistics by discussing how you might conduct a follow-up study. Your essay must address the following points: o Describe the research question for this experiment. § − What were the null and alternative hypotheses? § − Were the results of this test statistically significant? § − If so, why were they significant? o Would the researchers reject or fail to reject the null hypothesis? o Do the results provide sufficient evidence to support the alternative hypothesis? o Was the sample appropriate for this study? Explain your answer. o What are some possible limitations to this study? o Discuss how you would conduct a follow up study to this one. Explain your answer. o Describe the difference between practical and statistical significance. Essay 2 A researcher has investigated the relationship between IQ and grade point average (GPA) and found the correlation to be .75. For this essay, critique the results and interpretation of a correlational study. o Evaluate the correlational result and identify the strength of the correlation

o Examine the assumptions and limitations of the possible connection between the researcher’s chosen variables. o Identify and describe other statistical tests that could be used to study this relationship. Your essay response must address the following questions: o How strong is this correlation? § − Is this a positive or negative correlation? § − What does this correlation mean? o Does this correlation imply that individuals with high Intelligence Quotients (IQ) have high Grade Point Averages (GPA)? o Does this correlation provide evidence that high IQ causes GPA to go higher? § − What other variables might be influencing this relationship? o What is the connection between correlation and causation? o What are some of the factors that affect the size of this correlation? o Is correlation a good test for predicting GPA? § − If not, what statistical tests should a researcher use, and why? Essay 3 A researcher has recorded the reaction times of 20 individuals on a memory assessment. The following table indicates the individual times: 2.24.7 7.3 4.1 9.515.24.39.5 2.73.1 9.22.9 8.27.6 3.52.5 9.34.8 8.58.1

In this essay, demonstrate your ability to organize data into meaningful sets, calculate basic descriptive statistics, interpret the results, and evaluate the effects of outliers and changes in the variables. You may use Excel, one of the many free online descriptive statistics calculators, or calculate the values by hand and/or with a calculator. Next, separate the data into two groups of 10; one group will be the lower reaction times, and the second group will be the higher reaction times. Then, address the following points in your essay response: o Calculate the sum, mean, mode, median, standard deviation, range, skew, and kurtosis for each group. o How do the two groups differ? o Are there any outliers in either data group? o What effect does an outlier have on a sample? Lastly, double each sample by repeating the same 10 data points in each group. You will have a total of 20 data points for each group. After completing this, address the following in your essay response: o Calculate the following for the new data groups: sum, mean, mode, median, standard deviation, range, skew, and kurtosis. o Did any of the values change? o How does sample size affect those values? Part B: Research Study Critique In this second portion of the Final Exam, you will identify and critically evaluate a quantitative research article based on a social science topic. Your selected article must include a research question(s) and/or hypothesis(es) and utilize statistical analyses covered in the course. The article must be peer-reviewed and published within the last 10 years. In the body of your critique, describe the statistical approaches used, the variables included, the hypothesis(es) proposed, and the interpretation of the results. In your conclusion, suggest other statistical approaches that could have been used and, if appropriate, suggest alternative interpretations of the results. This

process will allow you to apply the concepts learned throughout the course in the interpretation of actual scientific research. Your critique must include the following sections: 1. Introduction Introduction: This section will include a general introduction of the quantitative study from a peer- reviewed source published within the last 10 years. The research questions and/or hypothesis(es) as well as the purpose of the study should be clearly defined. 2. Methods Methods: Describe and evaluate the procedures and methods of data collection, measures/instruments used, the participants and how they were selected, and the statistical techniques used. 3. Results Results: In this section describe and critique the results presented in the study. 4. Discussion Discussion: Discuss and evaluate the efficacy of the results presented in the study. Address, the strengths, weaknesses, and limitations of the study, and suggest future research directions. Include additional forms of statistical analyses as part of the suggestions for future research ……………………………………………………………………… ………..

PSY 325 aid Learn/psy325aid.com

Published on Dec 2, 2016

FOR MORE CLASSES VISIT www.psy325aid.com This Tutorial contains 2 Papers for each Assignment and Quiz (DQs--- 1 Set Only) PSY 325 Week 1 Ass...

Read more

Similar to

Popular now

Just for you