SQL Server 2008 Query - table join

I'm having trouble getting the results I want from a SQL Server 2008 query. Query 1 produces the results I want for [GeneralErrors] and Query 2 produces the correct results for [RehabErrors] but I really need them both on the same row. When I try and combine the two queries in Query 3, my results for [GeneralErrors] is incorrect but of the way I'm going the tables.

Query1:

SELECT
        ReviewID, 
        SUM(CASE Score_CorrectID_Accuracy WHEN 'Error' THEN 1 ELSE 0 END + 
        CASE Score_ProperlyIdentified_Accuracy WHEN 'Error' THEN 1 ELSE 0 END) AS GeneralErrors
    FROM  
        Reviews
    WHERE 
        (UserID IS NOT NULL AND UserID <> '')
    GROUP BY 
        Reviews.ReviewID

Results:

ReviewID    GeneralErrors
7           0
8           0
9           0
10          0
11          0
12          9
13          0
14          0
15          4

Query 2:

SELECT 
         Reviews.ReviewID
        ,COUNT(RehabMetricsCalls.ReviewID) AS RehabErrors
    FROM    RehabMetrics INNER JOIN
             RehabMetricsCalls ON RehabMetrics.RehabMetricID = RehabMetricsCalls.RehabMetricID RIGHT OUTER JOIN
             Reviews ON RehabMetricsCalls.ReviewID = Reviews.ReviewID   
    WHERE 
        (UserID IS NOT NULL AND UserID <> '')
    GROUP BY 
        Reviews.ReviewID

Results:

ReviewID    RehabErrors
7           3
8           0
9           0
10          0
11          0
12          5
13          5
14          0
15          4

Query 3: My attempt at combining the two queries which produces incorrect results

SELECT DISTINCT 
        Reviews.ReviewID
        ,SUM(CASE Score_CorrectID_Accuracy WHEN 'Error' THEN 1 ELSE 0 END + 
        CASE Score_ProperlyIdentified_Accuracy WHEN 'Error' THEN 1 ELSE 0 END + 
        CASE Score_MiniMiranda_Accuracy WHEN 'Error' THEN 1 ELSE 0 END + 
        CASE Score_Tone_Accuracy WHEN 'Error' THEN 1 ELSE 0 END + 
        CASE Score_Accuracy_Accuracy WHEN 'Error' THEN 1 ELSE 0 END + 
        CASE Score_Notepad_Accuracy WHEN 'Error' THEN 1 ELSE 0 END +        
        CASE Score_PCAResponsive_Accuracy WHEN 'Error' THEN 1 ELSE 0 END + 
        CASE Score_AWGInfo_Accuracy WHEN 'Error' THEN 1 ELSE 0 END + 
        CASE Complaint_Accuracy WHEN 'Error' THEN 1 ELSE 0 END) AS GeneralErrors
        ,COUNT(RehabMetricsCalls.ReviewID) AS RehabErrors
    FROM    RehabMetrics INNER JOIN
             RehabMetricsCalls ON RehabMetrics.RehabMetricID = RehabMetricsCalls.RehabMetricID INNER JOIN
             Reviews ON RehabMetricsCalls.ReviewID = Reviews.ReviewID   
    WHERE 
        (UserID IS NOT NULL AND UserID <> '')
    GROUP BY 
        Reviews.ReviewID

Desired results:

ReviewID    GeneralErrors   RehabErrors
    7           0               3
    12          45              5
    13          0               5
    15          16              4