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41)How many null hypotheses does a 2 × 2 factorial have for each dependent measure? A)Three. B)Two times two. C)One. D)None. 42)Which of the following is NOT one of the three null hypotheses for each dependent measure in a 2 × 2 factorial? A)There is no difference between the levels of factor A. B)There are significant main effects for either factor A or B but not both. C)There are no main effects for factor B D)There is no significant interaction of factors A and B. 43)The major difference between the hypothesis-testing procedures in factorial versus single-variable designs is that A)single-variable designs, although less complicated in terms of design, are more difficult to interpret. B)there are more dependent variables in the factorial design. C)the reasoning is very different in each type of design. D)there is more chance for confounding to occur in factorial designs. 44)In a factorial design with two factors, how many possible effects can there be? A)Four. B)Two. C)Three. D)Two to the third power. 45)The 2 × 2 factorial combines two designs into a single study, with the result that the 2 × 2 factorial A)is much weaker than a single-variable design. B)contains more than one null hypothesis. C)is impervious to threats to internal validity. D)requires far fewer participants than a single-variable design. 46)Which of the following is an accurate statement? A)There are many possible outcomes of a factorial design. B)Factorial designs can only demonstrate the presence of interactions but not main effects. C)It is not possible to have an interaction effect without at least one strong main effect. D)It is not possible to have both interactions and main effects in the same factorial design. 47)In a graph representing results in a factorial design, a line with a steep slope probably indicates A)a main effect. B)an interaction. C)a nonaffected factor. D)no effects. 48)In a graph representing data from a factorial design, parallel lines would indicate that A)there is no interaction. B)there is at least one interaction present. C)there is a significant interaction. D)there are at least two main effects. 49)In a graph of a 2 × 2 factorial design, the two lines are parallel. From the information given, which of the following statements is true? A)There are no main effects. B)There is an interaction between A and B. C)There is a main effect for factor A. D)There is no interaction. 50)A graph of a factorial design has two intersecting lines. From the information given, which of the following is true? A)The interaction between A and B is not significant. B)There is no interaction. C)There is an interaction, which may be significant. D)The null hypothesis can be rejected. Â

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