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3.3 Measuring and Controlling Variables 1)Measurement error can be responsible for all of the following EXCEPT A)distorting the participant’s scores. B)attenuating the observed strength of a relationship between variables. C)giving the impression that two variables are unrelated when they are indeed related. D)incorrectly assigning variables to the wrong scale of measurement. 2)Melanie lies on a questionnaire about infidelity because she doesn’t want the researcher to think poorly of her. This can lead to a type of measurement error referred to as A)social desirability. B)particpant bias. C)social awareness. D)researcher bias. 3)Measurement error A)distorts scores so that they do not reflect reality. B)does not affect the validity of your study. C)is present in almost all research studies. D)must be reported when applying for research grants. 4)One group of students takes the SATs in a quiet room, while another group takes the SATs in a loud, hot room. It is NOT possible to compare scores of the two groups due to A)the way the SAT test was operationally defined. B)measurement error. C)researcher bias. D)comparison error. 5)Assume that scores on an independent variable is distorted so that it no longer accurately reflects reality. This is called A)reality error. B)distortion error. C)measurement error. D)researcher error. 6)A source of measurement error is A)response-set definitional biases. B)response-set biases. C)operational definition biases. D)social undesirability. 7)What is the best way to reduce measurement error? A)Develop and apply a good operational definition. B)Use a ratio scale of measurement. C)Keep the number of participants equal in all groups. D)Conduct research at the experimental level. 8)A researcher studies stealing in college students. Research assistants do face-to-face interviews with participants. This study would appear susceptible to what source of measurement error? A)Operational definition biases. B)Scale attenuation effects. C)Social desirability. D)Researcher bias effects. 9)The best ways to minimize measurement error are developing a well thought out ________ and diligently using it in research. A)operational definition of the measurement procedure B)practical definition of the measurement procedure C)statistical measure D)operational definition of the statistical procedure 10)An operational definition is a definition of the A)operating principles. B)procedures used to operate any instruments. C)statistical operations to be used in analyzing the data. D)procedures used to measure a variable. Â

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