Consider the study described in the previous exercise.
- a. Is the conclusion—that reasoning using information displayed on a small screen is improved by turning the screen to landscape orientation—appropriate, given the study design? Explain.
- b. Is it reasonable to generalize the conclusions from this study to some larger population? If so, what population?
The paper “Turning to Learn: Screen Orientation and Reasoning from Small Devices” (Computers in Human Behavior [2011]: 793–797) describes a study that investigated whether cell phones with small screens are useful for gathering information. The researchers wondered if the ability to reason using information read on a small screen was affected by the screen orientation. The researchers assigned 33 undergraduate students who were enrolled in a psychology course at a large public university to one of two groups at random.
One group read material that was displayed on a small screen in portrait orientation, and the other group read material on the same size screen but turned to display the information in landscape orientation (see figure below).
The researchers found that performance on a reasoning test that was based on the displayed material was better for the group that read material in the landscape orientation.
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
Introduction To Statistics And Data Analysis
Additional Math Textbook Solutions
Developmental Mathematics (9th Edition)
Elementary Statistics Using the TI-83/84 Plus Calculator, Books a la Carte Edition (4th Edition)
Statistics for Business & Economics, Revised (MindTap Course List)
Elementary Statistics: A Step By Step Approach
Essential Statistics
Fundamentals of Statistics (5th Edition)
- Craik & Tulving ran an experiment to determine how depth of processing during study affects memory. In the study phase, 12 participants made judgments about words. In one block of trials (the visual condition) they indicated whether the words were written in upper case or lower case; in another block of trials (the auditory condition) they indicated whether the words contained an "ee" sound; in another block of trials (the meaning condition) they indicated whether the meaning of the words was pleasant or unpleasant. There were 12 words in each block. After completing the study phase, participants were asked to write down all the words they could remember. Here are the data: Mean Visual 3.5 Auditory 4.5 Meaning 6.0 Standard Deviation 1.5 1.6 1.9 Compared to the within-subjects design, the between-subjects design (select all that apply) Oa. Would have less statistical power O b. Would be less prone to experimenter bias O c. Would be less prone to order effects Od. Would have better…arrow_forwardQ5 An advertising agency has been hired by a manufacturer of pens to develop an advertising campaign for the upcoming holiday season. To prepare for this project, the research director decides to initiate a study of the effect of advertising on product perception. An experiment is designed to compare five different advertisements. Advertisement A: greatly undersells the pen's characteristics. Advertisement B: slightly undersells the pen's characteristics. Advertisement C: slightly oversells the pen's characteristics. Advertisement D: greatly oversells the pen's characteristics. Advertisement E: attempts to correctly stat the pen's characteristics. A sample of 25 adults respondents, taken from a larger focus group, is randomly assigned to the five advertisements (so that there are five respondents to each). After reading the advertisement and developing a sense of "product expectation," all respondents unknowingly receive the same pen to evaluate. The respondents are permitted to test…arrow_forward
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin HarcourtHolt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL