If the results of a study using the chi-square goodness-of-fit test are summarized as ?2 (4, N= 120) = 25.95, p< .05, then you would know that the total number of participants used was and the null hypothesis was _____

A psychometrist constructs a new personality test. He finds that the test scores do not vary from one administration of the test to the next. He also finds that the test does not adequately measure the global concept of personality. We can categorize the test as being ________ in reliability and ________ in validity.

a) high; low b) high; high c) low; high d) low; low

The main cause of limiting independent living later in life is:

A) "lower body" impairments. B) poor hearing. C) difficulty with divided-attention tasks. D) early stage dementia.