A researcher finds that height and intelligence are correlated in children. The age of the child is probably which of the following?
a. A mediating variable
b. An extraneous variable
c. A common-causal variable
d. An outcome variable
c
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According to the steps of hypothesis testing provided in your text, if you are using an independent samples t test, which of the following describes your procedure:
a. Select your significance level, determine the degrees of freedom, calculate your t test score, get the critical t value, reject the null hypothesis if the calculated t value is less than the critical t value. b. Calculate your t test score, determine the degrees of freedom, run the statistical program and get the p value, reject the null hypothesis if the p is greater than the alpha level. c. State your null and alternative hypotheses, determine the degrees of freedom, calculate your t test score, reject the null hypothesis if the p value is greater than the significance/alpha level. d. State the null and the alternative hypotheses; set the alpha level; conduct the statistical test and obtain the p value based on your empirical data; compare your p value to the alpha level and make a decision (1. reject the null versus 2. fail to reject the null); last, interpret findings.
If a gender-specific behavior is largely determined by culture, what is that behavior most accurately called?
a. Gender constant b. Gender role c. Gender stereotype d. Gender trait
If the ventromedial nucleus (VMN) of a rat's brain is destroyed, the rat
a. becomes aphagic and continues to eat until it has doubled its normal weight. b. becomes aphagic and stops eating altogether. c. becomes hyperphagic and continues to eat until it has doubled its normal weight. d. becomes hyperphagic and stops eating altogether.
Which of the following is often the first source of information about sex?
a. The media. b. Peers. c. Parents. d. The schools.