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many elementary schools have implemented a daily sustained silent reading period during which students faculty and
1 for the preceding situation discuss the advantages and disadvantages of using a quasi-experimental design in contrast
1 one sample has a mean of m4 and a second sample has a mean of m9 the two samples are combined into a single set of
assignmenttwo population meansa tomato farmer with a very large farm of approximately 2200 acres had heard about a new
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
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
suppose that you work for the child social services agency in your county your job is to investigate instances of
1 what is a hypothesis what is the distinction between a hypothesis and a prediction2 what information does the
what is a variable list at least five diff erent variables and then describe at least two levels of each variable for
1 define operational definition of a variable give at least two operational definitions of the variables you thought of
1 what is the difference between the non experimental method and the experimental method2 what is the difference
the dictionary definition of shy is being reserved or having or showing nervousness or timidity in the company of other
you observe that classmates who get good grades tend to sit toward the front of the classroom and those who receive
consider the hypothesis that stress at work causes family conflict at homea what type of relationship is proposed eg
identify the independent and dependent variables in the following descriptions of experimentsa students watched a
1 what is meant by the reliability of a measure distinguish between true score and measurement error2 describe the
for each of the following identify whether a nominal ordinal interval or ratio scale is being useda the temperatures in
1 how does sample size affect the interpretation of survey results2 distinguish between probability and nonprobability
1 distinguish between simple random stratified random and cluster sampling2 why dont researchers who want to test
suppose you want to know how many books in a bookstore have only male authors only female authors or both male and