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After the horror of 9/11, many people said the CIA/FBI should obviously have foreseen the likelihood of this form of terrorism. This perception most clearly illustrates

HINDSIGHT BIAS

When leanne heard about experimental evidence that drinking orange juice triggers hyperactivity in children, she questioned whether the tested children had been randomly assigned to experimental conditions. Leanne's reaction best illustrates

CRITICAL THINKING

Stacey suggests that because children are more impulsice than adults, they will have more difficulty controlling their anger. Stacey's prediction regarding ange management is an example of

A HYPOTHESIS

Professor carter observes and records the behavior of grocery shoppers as they select items to purchase. Which type of research is prfessor carter using?

NATURALISTIC OBSERVATION

A negative correlation between people's work related stress and their marital happiness would indicate that

higher levels of marital happiness are associated with lower levels of work related stress

Mr. Brown has gathered evidence that the self esteem of students is negatively correlated with their typical levels of anxiety. Before he uses this evidence to conclude that self esteem reduces anxiety, Mr. Brown should first be reminded that

CORRELATION DOES NOT PROVE CAUSATION

Which method offers the most reliable way of assessing whether athletic performance is boosted by caffeine consumption

THE EXPERIMENT

In drug treatment studies, doble blind procedures minimize outcome differences between experimental and control conditions that could be attributed to

PLACEBO EFFECTS

In an experimental study of the extent to which mental alertness is inhibited by sleep deprication, alertness would be the

DEPENDENT VARIABLE

To assess whethe sense of humor is affect by sexual stimulation, researches exposed marriesd couples to either sexually stimulating or sexually nonstimulating movie scenes prior to watching a comedy skit. In this research, the independent variable consisted of

LEVEL OF SEXUAL STIMULATION

One person in a 10-person group is 10 times older than anyone else in the group. With respect to age, it is MOST likely that the majority of group members are younger than the group's

MEAN

The ______ is a measure of _____

MEDIAN; CENTRAL TENDENCY

The maximum height of a normal curve corresponds to the ____ of a normal distribuition

MEAN

Random samples provide _____estimates of population averages if the samples have small ____

GOOD; STANDARD DEVIATIONS

Ethical principles developed by psychologists urge investigators to

TREAT INFORMATION ABOUT INDIVIDUAL RESEARCH PARTICIPANTS CONFIDENTIALLY

Jaime and Lynn were sure that they had answered most of the multiple-choice questions correctly because "the questions required only common sense." However, they each scored less than 60% on the exam. This best illustrates

OVERCONFIDENCE

Which research method runs the greatest risk of collecting evidence that may be unrepresentative of what is generally true?

CASE STUDY

Psychological theories

DO ALL OF THESE THINGS

Every twenty fifth person who subscribed to a weekly news magazine was contact by market researches to complete a survey of opinions regarding the magazine's contents. The researchers were applying the technique known as

RANDOM SAMPLING

A correlation of +.70 between childresn's physical height and their popularity among their peers indicates that

High levels of popularity among your peers is associated with greater physical height in children

Surveys are most likely to indicate that reckless behavior and self control are

NEGATIVELY CORRELATED

A tendency to notice and remember instances in which our premonitions of disaster are subsequently followed by harmful events is most likely to contribute to

ILLUSARY CORRELATIONS

To test the potential effect of hunger on taste sensitivity, groups of research participants are deprived of food for differing lengths of time beforethey engage in a taste sensitivity test. This research is an examp of

AN EXPERIMENT

Researchers control factors that might influence a dependent variable by means of

RANDOM ASSIGNMENT

In a study of factors that might affect memory, research participants were assigned to drink either an alcoholic or nonalcoholic beverage prior to completing a memory test. Those who drank the nonalcoholic beverage were assigned to the ____ group

CONTROL

In an experimental study of the effects of dieting on weight loss, dieting would be the

INDEPENDENT VARIABLE

Ahmed has five sisters who are 3,3,5,9 and 10 yrs old. The number 5 represents the ____of the sister's ages

MEDIAN

The _____ can be a particularly misleading indication of what is average for a _____ distribution of scores

MEAN; SKEWED

The _____ is a measure of ______

STANDARD DEVIATION; VARIATION

Differences between two samples are LEAST likely to be statistically significant if

The samples are small and the standrd deviations of the samples are small

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