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1 what is confounding of variables2 what is meant by the internal validity of an experiment3 how do the two true
1 what are some of the ways of dealing with the problems of a repeated measures design2 when would a researcher decide
the procedure used to obtain your sample ie random or nonrandom sampling is not the same as the procedure for assigning
design an experiment to test the hypothesis that single-gender math classes are beneficial to adolescent females
professor foley conducted a cola taste test each participant in the experiment first tasted 2 ounces of coca-cola then
1 what is the difference between staged and straightforward manipulations of an independent variable2 what are the
1 what is meant by the sensitivity of a dependent measure what are ceiling and floor effects2 what are demand
1 describe the value of a debriefing following the study2 if you were investigating variables that affect helping
1 write a debriefing statement that you would read to participants in the asch line judgment study p 1842 design an
assume that you want 15 participants in each condition of your experiment which uses a 3 3 3 factorial design how many
1 what is the difference between the three ways of describing results comparing percentages comparing means and
1 what is a measure of central tendency distinguish between the mean median and mode2 what is a measure of variability
1 what is a scatterplot2 what happens when a scatterplot shows the relationship to be curvilinear3 what is a regression
1 how does multiple correlation increase accuracy of prediction2 what is the purpose of partial correlation3 when a
your favorite newspaper newsmagazine or news-related website is a rich source of descriptive statistics on a variety of
dollinger matyja and huber 2008 studied the correlations between overall exam performance in an upper-division
ask 20 students on campus how many units credits they are taking as well as how many hours per week they work in paid
prior to the start of the school year mr king reviewed the cumulative folders of the students in his fourth-grade class
refer to the figure below then select the correct answer to questions a b and ca which one of the following numbers
1 distinguish between the null hypothesis and the research hypothesis when does the researcher decide to reject the
1 distinguish between a type i and a type ii error why is your significance level the probability of making a type i
1 what influences the probability of a type ii error2 what is the difference between statistical significance and
in an experiment one group of research participants is given 10 pages of material to proofread for errors another group
in professor dres study the average number of errors detected in the print and computer conditions was 384 and 132
assignment1 describe what type of data analysis would use linear correlation coefficients and line of best fits