SOLVED

91)A manipulation check on the independent variable might consist of A)a simple self-report measure of anxiety. B)giving participants false feedback after the experiment. C)verifying demographic information provided by participants. D)nonrandom assignment of participants to groups. 92)Making sure the experimental and control groups are as similar as possible at the start of the experiment and that they are treated in exactly the same way except for the independent variable manipulation controls for A)error variance. B)extraneous variance. C)experimental effects. D)experimental variance. 93)Which of the following is NOT a way of controlling extraneous variance? A)Random assignment of participants. B)Building potential confounding variables into the experiment as an additional independent variable. C)Eliminating confounding variables by selecting participants who are as homogeneous as possible on that variable. D)Ad hoc sampling. 94)In experimental research, extraneous variables are always A)between-group variables. B)within-group variables. C)organismic variables. D)response variables. 95)Extraneous variables have their effects A)only on individuals. B)on whole groups. C)randomly among individuals. D)on experimenters. 96)When a researcher builds in additional independent variables to control for extraneous variables, the design is called a A)manipulated design. B)complicated design. C)factorial design. D)correlational design. 97)The use of within-subjects designs and the use of reliable measuring instruments minimize A)extraneous variance. B)error variance. C)experimental effect. D)experimental variance. 98)In experimentation, the term control refers to A)control of variance. B)the reduction of the number of participants in a condition. C)the increase in individual difference to obtain more variation. D)random assignment of participants to conditions only. 99)Within-subjects designs reduces error variance by A)controlling conditions of measurement. B)randomization. C)eliminating individual differences. D)adding more participants. 100)The value of F will increase if  A)extraneous variance increases. B)error variance increases. C)experimental variance decreases. D)extraneous variance decreases. 101)In an ANOVA, we try to A)maximize experimental variance and within-groups variance. B)minimize error variance and control extraneous variance. C)minimize both error variance and experimental variance. D)control extraneous variance and maximize error variance. 102)What is usually the major contributor to error variance? A)Group size. B)Unreliable measurement. C)Individual differences. D)High means. 103)Which of the following is accomplished in a within-subjects design? A)Reduction of error variance. B)Increase in individual differences. C)Improvement of external validity. D)Increase in the alpha level. 104)Carefully controlling measurement conditions and developing reliable measurement instruments aids in minimizing A)extraneous variance. B)error variance. C)systematic effects. D)experimental variance.Â