#7f): In the Parker and Gerber (2000) study, the results for four hypothesis tests are reported, one for each of the attidude and achievement outcomes. Of the four tests reported, how many were statistically significant (using alpha = .05)?

	A.	four
	B.	three
	C.	two
	D.	One

BELOW IS THE INFORMATION

In the table below, indicate whether the science intervention had significant effects on achievement and attitude. Specifically, for each of the outcome variables in the table below, indicate the mean values for pre- and post-tests, the observed value of the t-statistic, the df, the two-tailed critical values of t (with alpha = .05, which you can obtain from the table in your text's appendix), and whether a significant difference between pre and post-test was found. Note: you do not need to compute these values; they can be found in the text of the article (except for the critical t-values, which can be found in your textbook's appendix).

Outcome variable	pre-test mean	post-test mean	t-statistic (test statistic)	df	t-critical values	Significant pre-test to post-test difference? (yes or no)
Science Achievement	3.0	8.64	5.52	10	2.2281	Yes
Science Attitude (ATSS overall score)	2.72	3.07	2.68	10	2.2281	Yes
Science Motivation (ATSS subscale 1)	2.4	3.14	2.9	10	2.2281	Yes
Science Importance (ATSS subscale 2)	2.91	3.15	1.485	10	2.2281	No