You have just received a new digital tape measure. When you measure the same board four times, you find the measure fluctuates from 4 to 8 inches. Your new tape measure can be said to be low in
a. validity.
b. reliability.
c. externality.
d. reactivity.
Answer: reliability.
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Psychology Chapter 3
- A "gene" is most similar in meaning to the word ________
- Evolutionary psychologists believe that adaptation through natural selection occurs with psychological traits just as it does with physical characteristics. To be considered an adaptation, a trait must satisfy three criteria. Which of the following is NOT one of these criteria?
- Male and female differences in performance are ________ and due to ________ factors.
- The communication of the endocrine system is ________ and ________ .
- How does the nervous system control the endocrine system?
- What is a reasonable explanation for the finding that artists and architects are proportionately more likely to be left handed?
- Some blame poor decision-making by teenagers on the ________ lobes being the last area of the brain to fully develop.
- A woman was in a car accident and suffered an injury to her head. Although a three-dimensional image of her brain is needed to help decide what treatment would be best, any method using chemicals or radiation cannot be used because she is pregnant. As her doctor, what type of scan would you recommend?
- Both sympathetic arousal and parasympathetic calming responses are controlled by the ________ nervous system.
- What would be the effect on a person who received a drug that acted as an acetylcholine antagonist?
- Too much dopamine is related to the disease ________ , whereas too little dopamine is associated with ________ .
- If a neuron is compared to a gun, the ________ would be the trigger.
- Myelin can greatly speed the action potential by enabling ________
- Random variability exists because
- Igor notices that the more time he spends working in the laboratory, the more familiar he becomes with the standard laboratory procedures. What type of relationship does this observation represent?
- If a researcher finds that younger students contributed more to a discussion on human sexuality than did older students, what type of relationship between age and participation was found?
- An experimenter had one group of participants eat ice cream that was packaged in a red carton, whereas another group of participants ate the same flavoured ice cream from a green carton. Participants then indicated how much they liked the ice cream by rating the taste on a 1-5 scale. The independent variable in this experiment was the
- By employing randomization, the researcher ensures that
- A researcher observed that drinking coffee improved performance on complex math problems up to a point. The researcher also noted, however, that excessive coffee drinking actually interferes with problem solving. What type of relationship was observed?
- If a positive relationship between the amount of candy consumed and the amount of weight gained in a month exists, what should the results be like?
- When a researcher manipulates temperature of a room in order to examine the effect it has on task performance, the different temperature conditions are referred to as the _____ of the variable.
- What is the primary advantage of a field experiment over a laboratory experiment?
- The reliability of a test can be assessed by employing techniques that measure individuals at only one point in time. Which of the following is not one of these techniques?
- To assess the reliability of a measure, one should _____ the measures.
- You take your temperature with a thermometer three times over a 20-minute period and observe the following measurements: 98, 106, and 89 degrees. You should conclude that the _____ of the thermometer is _____.