Exam 11: Within-Subjects Designs

Controlling Within-Subjects Designs In ____, an experimenter constructs a matrix of sequences so that each Treatment appears only once in any order position across the different order Sequences.

Introduction Since subjects in a within-subjects design participate in more than one experimental condition and are assessed on the dependent variable after each treatment, this design is also called a ____ design.

Mixed Designs In a mixed design,

Mixed Designs Jones and Menzies (2000) used a ____ design to study the effects of spider phobia (high and low) and spider exposure (spider photo, real spider, and post-spider) on subjects' estimates of their likelihood of being bitten by a spider.

Controlling Within-Subjects Designs If an experimenter plans to use complete counterbalancing with five levels of an independent variable, she will need a minimum of ___ subjects.

Controlling Within-Subjects Designs Libby compared different strategies for teaching patients to inhale large volumes of air.She observed that subjects generally produced their largest inhalation volumes during the last strategy condition even though she randomized treatment order.Her findings suggest that ____ influenced her results.

Mixed Designs The statistical procedures for analyzing mixed designs are ____ than those for within-subjects or between-subjects factorial designs.

Controlling Within-Subjects Designs As subjects attempt to solve word problems across several experimental conditions, they make increasing numbers of mistakes.This illustrates

A Within-Subjects Experiment: Homophone Priming of Proper Names Burke et al studied

Controlling Within-Subjects Designs When a researcher uses partial counterbalancing, she will

Controlling Within-Subjects Designs If a researcher used three treatment conditions in a within-subjects design and chose subject-by-subject counterbalancing, the order of presentation would be

Introduction Compared to a between-subjects design, a within-subjects design

Introduction What is a major advantage of a within-subjects design?

A Within-Subjects Experiment: Homophone Priming of Proper Names Charlene's review of previous studies showed that she will need at least 10 subjects per condition for her 3 X 2 within-subjects factorial design.How many subjects will she need? How many subjects will a within-subjects design save compared to a between-subjects design?

Introduction The principal advantage of using a within-subjects design when participants vary greatly on the dependent variable is that it

Controlling Within-Subjects Designs In a within-subjects design, the effects of some treatments may persist after they are removed and influence performance during later treatment conditions.These effects are known as

Controlling Within-Subjects Designs If we wish to counterbalance treatments in a within-subjects design and present each treatment condition only once to each subject, we must use

Controlling Within-Subjects Designs We should suspect contamination by ____ when performance improves as participants become more skillful using the equipment.

Controlling Within-Subjects Designs Researchers use counterbalancing to

Mixed Designs Toby measured blood pressure changes in extreme Type As and extreme Type Bs who were each exposed to three levels of time pressure to complete a difficult puzzle (no time limit, 15 minutes, and 30 minutes).Which experimental design did Toby use?