RESEARCH METHODS F/ BEHAV.(LL)-W/MINTAP
6th Edition
ISBN: 9781337755016
Author: GRAVETTER
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 10, Problem 9E
Explain how the pretest helps minimize the threat to internal validity from individual differences in a pretest posttest nonequivalent control group design.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Show the difference between two approaches to significance testing?
What are the differences between histograms and Pareto diagram? Elaborate
Explain the difference between a no-treatment control group and a placebo control group. Why are studies that compare a treatment condition to a placebo control group often associated with higher internal validity compared to studies with a no-treatment control?
Chapter 10 Solutions
RESEARCH METHODS F/ BEHAV.(LL)-W/MINTAP
Ch. 10.1 - Define, compare, and contrast the experimental,...Ch. 10.2 - Define a nonequivalent group design and identify...Ch. 10.2 - Explain how individual differences threaten the...Ch. 10.2 - Describe the two nonexperimental nonequivalent...Ch. 10.2 - Explain how a simple modification of the...Ch. 10.3 - Define a pre-post design and identify examples of...Ch. 10.3 - Identify the threats to internal validity for...Ch. 10.3 - Describe the nonexpenmental pretest-posttest...Ch. 10.3 - Explain how replacing the single observation...Ch. 10.4 - Define cross-sectional and longitudinal designs,...
Ch. 10.5 - Identify the statistical techniques that are...Ch. 10.5 - Explain how the terms quasi-independent variable...Ch. 10 - In addition to the key words, you should also be...Ch. 10 - Explain the distinction between experimental and...Ch. 10 - Why are studies that examine the effects of aging...Ch. 10 - Explain why we can be more confident about causal...Ch. 10 - Give an example of a situation (aside from gender)...Ch. 10 - Mueller and Oppenheimer (2014) conducted a series...Ch. 10 - A researcher measures personality characteristics...Ch. 10 - A researcher wants to describe the effectiveness...Ch. 10 - Explain how the pretest helps minimize the threat...Ch. 10 - Describe the basic characteristics of a pre-post...Ch. 10 - To evaluate the effectiveness of a new television...Ch. 10 - What characteristic differentiates a pretest-post...Ch. 10 - Explain how a time-series design minimizes most...Ch. 10 - A researcher wants to describe how fine motor...Ch. 10 - Although the cohort effect can be a serious...Ch. 10 - Identify the appropriate statistical test for each...Ch. 10 - The college offers all students an optional...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Similar questions
- What is a sample space?arrow_forwardExplain the difference between a one-tailed and two-tailed significance test. When is it appropriate to use each test?arrow_forwardJissan is testing whether gasoline brand has any effect on gasoline mileage (miles driven by one tank). 5 cars is used for this test and each car used one tank of brand Khell and one tank of brand Gasoline Office. The results are as follows: Is there evidence to suggest a difference between average mileage numbers with two gasoline brands? Use %1 significance level. Use P-value approach and write interpretation of the decision.(Please consider 4 significant digits in your results)arrow_forward
- A mental health treatment center wanted to compare group therapy vs. individual therapy. They are interested in the relationship between treatment type (group, individual) and treatment completion (yes/no). What type of statistical test should be used?arrow_forwardExplain ways in which we use the independent sample t-test vs. paired sample t-test?arrow_forwardWhat is the advantage of removing the variability caused by individual differences in a within-subjects design?arrow_forward
- describe the test of significance for large sample.in a sample of 1200 people, exactly 690 are in education profession and rests are business person.can we claim that business and education both are equally acceptable in this society?give your conclusion at i.1% level of significance and ii.5%level of significance.arrow_forwardI need help finding the test statistic and the P-value.arrow_forwardAbsenteeism can be a serious employment problem. It is estimated that absenteeism reduces potential output by more than 10%. Two economists launched a research project to learn more about the problem. They randomly selected 100 organizations to participate in a 1-year study. For each organization, they recorded the average number of days absent per employee and several variables thought to affect absenteeism. Perform a two-sample t-test analysis to determine if mean absenteeism is different between organizations which have a good Union management and those that do not. I have provided the F-test for two variances below: Copy and paste the Two sample t-test output below (Please let me know how I can get the two sample t-test output in Excel, I do not need the copied version) AND provide a clear conclusion supported by key statistics in the output about how absenteeism is affected by the Union Management Relationship. Data: Wage Pct PT Pct U Av Shift U/M Rel Absent 22477 8.5…arrow_forward
- Using the p-value method, should be rejected at the level of significance? Why or why not?arrow_forwardA researcher is testing the effect of one independent variable using three treatment conditions. She compares three group means where there are different people in each group. It is best for her to use which type of statistical analysis?arrow_forwardA student wanted to tested the effects of relaxation exercises on test anxiety. She recruited a group of students to take a GRE practice test. She then taught the students a relaxation exercise that they were to practice every day for 3 weeks. The students then came back and took a GRE practice test again. The score on the GRE test was recorded for each student. Which statistical test would be best to determine if there is a significant difference between measures? one-sample t-test dependent samples t-test independent samples t-test ANOVAarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning
Statistics 4.1 Introduction to Inferential Statistics; Author: Dr. Jack L. Jackson II;https://www.youtube.com/watch?v=QLo4TEvBvK4;License: Standard YouTube License, CC-BY