________ are chemical signals that are used as communication devices within a given species to signal relevant stimuli
a. Phosphenes
b. Pheromones
c. Hallucinogens
d. Cochlear microphonics
e. Hormones
b. Pheromones
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By ages 10-11 children start expecting friends to share their values, be loyal, and _______________
Fill in the blank with correct word.
In a learning study using repeated measures, the correlation between early and later times will likely be low. Analyzing fewer levels of the independent variable would help to avoid violating the assumption of
a. normality. b. homogeneity of variance. c. constant correlations among pairs of levels of the repeated variables. d. MSerror is an unbiased estimate of the magnitude of effect of the predictor variable in a regression analysis.
Sharon seems depressed and just wants to nap all the time during the day. She is exhibiting symptoms of the sleep disturbance known as
a. sleep drunkenness. b. sleep apnea. c. hypersomnia. d. sleep-wake schedule disorder.
If sleep repairs the wear and tear of the day's activities on the body, then
a. we should all need about the same amount of sleep each night. b. sedentary people should need more sleep each night than active people. c. active people should need more sleep each night than sedentary people. d. persons in dangerous occupations should need more sleep than those in other occupations. e. males should need more sleep than females.